Effects of Cannabis | ARISE Health Education

📋 Learning Outcomes — By the end of this lesson: 📋 Matokeo ya Kujifunza — Mwishoni mwa somo hili: 📋 Utajua Nini — Lesson hii ikisha:

Explain what cannabis is and how THC affects the brain Eleza cannabis ni nini na jinsi THC inavyoathiri ubongo Jua bangi ni gani na THC inafanya ubongo nini
Identify the short-term and long-term effects on the body and mind Tambua athari za muda mfupi na mrefu kwa mwili na akili Jua effects za sasa na za baadaye — kwa body na kwa akili
Explain why adolescents are especially at risk from cannabis use Eleza kwa nini vijana wako katika hatari zaidi Eleza kwa nini watoto wa shule wako kwa hatari zaidi kuliko mzee
Confidently refuse cannabis using evidence-based arguments Kataa bangi kwa ujasiri ukitumia hoja za kisayansi Weza kudeny bangi bila kuonekana uko scared
Know where to get help if you or someone you know is struggling Jua wapi kupata msaada wewe au mtu unayemjua akihitaji Jua mahali pa kupata help ukihitaji au mangi wako na shida

🔍 Big Question: Cannabis comes from a plant — so people say it's "natural" and "safe." But does natural mean harmless? What does science actually say — especially for a brain that's still developing? 🔍 Swali Kubwa: Bangi inatoka kwa mmea — kwa hivyo watu husema ni "asili" na "salama." Lakini je, asili inamaanisha haina madhara? Sayansi inasema nini — hasa kwa ubongo unaoendelea kukua? 🔍 The Big Question: Bangi inatoka kwa mmea — so mangi husema ni natural na haina shida. Lakini natural inamaanisha salama? Science inasema nini — hasa kwa ubongo ya mtoto wa shule ambayo bado inakuwa?

🌿 What is Cannabis? The Street Names & the Science Cannabis ni Nini? Majina ya Mtaani na Sayansi Bangi ni Nini? Street Names na Science

Cannabis sativa is a plant containing over 100 active compounds called cannabinoids. It is known by many names across Kenya. Cannabis sativa ni mmea wenye zaidi ya kemikali 100 zinazoitwa cannabinoids. Inajulikana kwa majina mengi kote Kenya. Cannabis sativa ni mmea ina chemicals zaidi ya 100 zinazoitwa cannabinoids. Kama unavyojua, ina jina nyingi.

🗣️ Street Names Unajua

Bhang · Bangi · Weed · Ganja · Grass · Mary Jane · Reefer · Kush · Sheng: "Tumbwe" · "Nyama choma" (slang in some areas) · "Kijani" Bhang · Bangi · Weed · Ganja · Majani · Kijani — majina mengi, athari moja Tumbwe · Bangi · Kijani · Nyama · Weed · Grass — majina mengi, effect moja tu

Many names, one substance, one set of risks. Majina mengi, dutu moja, hatari moja. Whatever unaitwa — story ni moja.

🔑 THC (Tetrahydrocannabinol) — The Psychoactive Compound 🔑 THC — Kemikali Inayobadilisha Akili 🔑 THC — Kitu Kinachodunda Ubongo THC is the chemical in cannabis that causes the "high" — altered perception, euphoria, and paranoia. It binds to cannabinoid receptors in the brain, particularly in areas controlling memory, coordination, and reward. THC ni kemikali katika bangi inayosababisha "high" — mabadiliko ya mtazamo, furaha ya bandia, na wasiwasi. Inaunganika na vipokezi vya cannabinoid kwenye ubongo, hasa maeneo yanayodhibiti kumbukumbu na malipo. THC ndiyo kitu kinachokufanya "fly" — ubongo inabadilika, unaona vitu tofauti, unafeel high. Inakaa kwa receptors za ubongo — hasa sehemu ya kumbukumbu na reward.

🔑 CBD (Cannabidiol) — The Non-Psychoactive Compound 🔑 CBD — Kemikali Isiyobadilisha Akili 🔑 CBD — Hii Haikudund Ubongo CBD does NOT cause a high. It has limited medical uses (e.g. certain epilepsy conditions) under strict prescription — but ONLY in pharmaceutical-grade form, not street cannabis which contains dangerous levels of THC. CBD HAISABABISHI high. Ina matumizi kidogo ya kimatibabu chini ya dawa — lakini si kwa bangi ya mtaani ambayo ina THC nyingi za hatari. CBD haikufanya high. Ina uses kidogo za dawa — lakini bangi ya mtaani si CBD. Bangi ya street ina THC mob sana.

⚠️ Illegal in Kenya: ⚠️ Haramu nchini Kenya: ⚠️ Haramu Kenya: Cannabis is a Class B controlled substance under Kenya's Narcotic Drugs and Psychotropic Substances Act Cap 245. Possession can lead to arrest and imprisonment. There are no legal cannabis dispensaries in Kenya. Bangi ni dawa iliyopigwa marufuku chini ya Sheria ya Dawa za Kulevya Cap 245. Umiliki unaweza kusababisha kukamatwa na kufungwa. Bangi ni haramu. Ukipatikana nayo Kenya unaweza kukaliwa ndani. Hakuna duka lolote la bangi legal Kenya.

⚡ Short-Term Effects — What Happens Right Now Athari za Muda Mfupi — Kinachotokea Sasa Hivi Effects za Sasa — Kinachotokea Ukidunda

THC reaches the brain within minutes of smoking. The effects last 1–4 hours but the decision-making impairment lasts much longer than the "high" feeling. THC inafika ubongoni ndani ya dakika chache. Athari hudumu masaa 1–4 lakini udhaifu wa kufanya maamuzi hudumu muda mrefu zaidi. THC inafika kwa ubongo haraka sana. Effects inadum masaa 1–4 — lakini akili bado imesimama hata high ikiisha.

EffectAthariKinachotokea	What it feels likeHisiaUnahisi nini	The real riskHatari halisiHatari gani
EuphoriaFuraha bandiaKuhisi poa sana	Happy, relaxed, gigglingFuraha, utulivu, kichekoUko on top of the world	Creates craving — the brain wants it againHamu ya kutumia tenaUbongo inataka tena na tena
Memory impairmentKumbukumbu dhaifuKumbukumbu imekwama	Cannot remember what you did hours agoHusikumbuki ulichofanyaUsiku wote umepotea	Destroys exam preparation entirelyInabomoa maandalizi ya mtihaniKCSE unaenda chini kabisa
Slowed reactionsMwendo wa polepoleUbongo slow motion	Everything feels in slow motionKila kitu kinaonekana polepoleKama life iko slow-mo	2× road accident risk; cannot operate machineryHatari mara 2 kwa ajaliBoda boda + bangi = coffin
Anxiety & paranoiaWasiwasi na hofuParanoia	Intense fear, racing thoughts, panicHofu kali, mawazo mengi, wasiwasiUnadhani kila mtu anakutazama	Triggers psychosis in vulnerable usersInaweza kusababisha ugonjwa wa akiliInaweza kufungua madness kwa baadhi ya watu
Red eyes, dry mouthMacho mekundu, mdomo kavuMacho mekundu, koo kavu	Blood vessels in eyes dilateMishipa ya damu kwenye jicho inafungukaMacho yako inasema kila kitu	Immediately obvious to teachers and parentsMwalimu na wazazi wanaona harakaMwalimu anajua immediately — cannot hide

💬 Ukweli wa Mtaani

"I only smoke on weekends so it doesn't affect school" — This is false. THC stays in the brain for 28+ days after use. Every Monday, Omondi's hippocampus (memory centre) is still impaired from Friday's session. "Navuta wikendi tu — haiaathiri shule" — Hii ni uongo. THC inakaa ubongoni kwa siku 28+. Kila Jumatatu, kumbukumbu ya Omondi bado imekuwa dhaifu. "Navuta Friday tu — Monday niko sawa" — Uongo mkubwa. THC inakaa kwa ubongo kwa wiki 4. Monday ya KCSE notes, ubongo yako bado iko na bangi ya Friday. Hakuna shortcut.

🧠 Why Teens Are in More Danger Than Adults Kwa Nini Vijana Wako Katika Hatari Zaidi Kwa Nini Sisi Tuko Hatarini Zaidi Kuliko Wazee

This is the most important fact in this entire lesson: your brain is not fully developed until age 25. Cannabis permanently damages a brain that is still developing in ways it does NOT damage a mature adult brain. Hii ndiyo ukweli muhimu zaidi katika somo hili lote: ubongo wako haujakamilika hadi umri wa miaka 25. Bangi inaharibu ubongo unaokua kwa njia ambayo haiharibu ubongo wa mtu mzima. Hii ndiyo the most important thing katika lesson yote: ubongo yako haijafika 100% hadi una miaka 25. Bangi inaharibu ubongo inayokua kwa njia tofauti kabisa na mzee.

⚠️ The Prefrontal Cortex — What's Still Being Built ⚠️ Sehemu ya Ubongo Inayoendelea Kukua ⚠️ Sehemu ya Ubongo Bado Inabuildiwa
The prefrontal cortex controls: judgment, decision-making, impulse control, memory, and emotional regulation. THC disrupts the development of this exact region. The damage is permanent — the brain cannot repair it later. Prefrontal cortex inadhibiti: hukumu, kufanya maamuzi, kudhibiti msukumo, kumbukumbu, na udhibiti wa hisia. THC inazuia ukuaji wa sehemu hii hasa. Uharibifu ni wa kudumu — ubongo hauwezi kujitengeneza baadaye. Prefrontal cortex inadhibiti: maamuzi, kumbukumbu, kudhibiti anger yako, emotions. THC inakatakata development ya sehemu hii. Na damage ni ya maisha yote — hailipiki.

Who starts & whenAnapoanzaAnaanza lini	Addiction riskHatari ya utegemeziHatari ya ku-hooked	Long-term brain damageUharibifu wa kudumuDamage ya maisha
Starts under 18Anaanza chini ya 18Anaanza primary/sec	1 in 6 (17%)1 kati ya 6 (17%)1 kati ya 6 (17%)	Permanent IQ reduction up to 8 points, memory deficitsKupungua kwa akili hadi pointi 8 za IQ, upungufu wa kumbukumbuIQ inashuka pointi 8 permanently, kumbukumbu imekwenda
Starts at 25+Anaanza baada ya 25Anaanza ana miaka 25+	1 in 11 (9%)1 kati ya 11 (9%)1 kati ya 11 (9%)	Less permanent damage — brain fully formedUharibifu mdogo — ubongo umekamilikaDamage kidogo — ubongo ilikuwa tayari complete
Daily use (any age)Matumizi ya kila sikuKila siku	1 in 2 (50%)1 kati ya 2 (50%)Kila mtu wa pili (50%)	Severe — cognitive function significantly impairedKali — utendaji wa akili unapungua sanaKabisa — ubongo haikufanya kazi vizuri

🇰🇪 Baraka's Story, Nairobi Eastleigh: Hadithi ya Baraka, Eastleigh Nairobi: Story ya Baraka, Eastleigh: Started smoking bhang at Form 2 "to deal with stress before exams." By Form 4, he couldn't sit through a single lesson without drifting. Failed KCSE with a D. His four closest friends who didn't smoke all got C+ and above. "The worst part," he says, "is I studied harder than them. I just couldn't retain anything. It was like pouring water into a broken cup." Alianza kuvuta bangi Darasa la 2 "kushughulikia msongo wa mawazo kabla ya mitihani." Kufikia Darasa la 4, hakuweza kukaa darasa mzima bila kupotea. Alishindwa KCSE na D. Marafiki wake wanne waliocheza bila kuvuta walipata C+ na zaidi. "Sehemu mbaya zaidi," anasema, "ni kwamba nilijifunza kwa bidii zaidi yao. Sikuweza kuhifadhi kitu chochote. Ilikuwa kama kumimina maji kwenye kikombe kilichovunjika." Alianza ku-smoke bangi Form 2 "kushughulikia stress ya exams." Form 4, hakuweza kukaa lesson moja bila akili yake ikaenda. KCSE — D minus. Marafiki wake wanne hawakuvuta — wote wakapata C+ na zaidi. "Mbaya zaidi," anasema, "nilijisoma zaidi kuliko wao. Lakini sikuweza retain anything. Ilikuwa kama mimina maji kwa chombo kilichopasuka."

🔴 Cannabis and Mental Health — The Hidden Risk Bangi na Afya ya Akili — Hatari Iliyofichwa Bangi na Mental Health — Hatari Ambayo Watu Hawasemi

Most people only think about the physical effects of cannabis. The mental health risks are less talked about — but for some people, they are catastrophic. Watu wengi wanafikiri tu kuhusu athari za kimwili za bangi. Hatari za afya ya akili hazizungumzwi sana — lakini kwa baadhi ya watu, zinaweza kuwa mbaya kabisa. Watu wanazungumza macho mekundu na kumbukumbu mbaya. Lakini hakuna anayekuambia kuhusu mental health — na hii ndiyo hatari kubwa zaidi.

🔑 Cannabis-Induced Psychosis: 🔑 Psychosis Inayosababishwa na Bangi: 🔑 Bangi-Induced Madness: A serious mental health condition triggered by cannabis use — symptoms include hearing voices, paranoid delusions (strong false beliefs), disorganised thinking, and loss of contact with reality. Can occur after just a few uses in genetically vulnerable individuals. Can become permanent schizophrenia. Hali mbaya ya afya ya akili inayosababishwa na bangi — dalili ni kusikia sauti, imani za uongo, mawazo yasiyopangwa, na kupoteza uhalisia. Inaweza kutokea baada ya matumizi machache tu kwa watu wanaohusika kwa urithi. Inaweza kuwa schizophrenia ya kudumu. Ugonjwa wa akili unaosababishwa na bangi — unasikia voices, unadhani mambo ya uongo, mawazo yako yanapotea. Inaweza kutokea kwa mtu baada ya ku-smoke mara chache tu — kama DNA yake iko hivyo. Inaweza kuwa madness ya maisha yote.

⚠️ You cannot know in advance if you are genetically vulnerable. ⚠️ Huwezi kujua mapema kama uko katika hatari ya urithi. ⚠️ Huwezi kujua kama uko kwa hatari — hadi inakupata. Family history of mental illness increases risk significantly. But psychosis can also occur in people with no family history. The risk is real and it is irreversible. Historia ya familia ya ugonjwa wa akili huongeza hatari sana. Lakini psychosis inaweza pia kutokea kwa watu wasio na historia ya familia. Hatari ni ya kweli na haiwezi kugeuzwa. Kama family yako ina history ya mental illness, uko hatarini zaidi. Lakini hata kama hawana — inaweza ikupata. Na hailipiki.

🇰🇪 Zawadi's Story, Kisumu: Hadithi ya Zawadi, Kisumu: Story ya Zawadi, Kisumu: Started smoking bhang at 14 with school friends "just for fun." At 20, she was admitted to Mathare Hospital hearing voices telling her to hurt herself. Diagnosed with cannabis-induced psychosis. Her family spent their entire savings on treatment. She is now 24 and on permanent medication. "I was told it was harmless. The person who told me that is fine. I am not." Alianza kuvuta bangi akiwa na miaka 14 na marafiki wa shule "kwa burudani tu." Akiwa na miaka 20, alilazwa Hospitali ya Mathare akisikia sauti zikimwambia ajidhuru. Alipata psychosis ya bangi. Familia yake ilitumia akiba yote kwa matibabu. Sasa ana miaka 24 na dawa za kudumu. "Nilikuwa naambiwa haina madhara. Yule aliyenisema bado yuko sawa. Mimi siko." Alianza ku-smoke bangi ana miaka 14 na marafiki wa shule "just for fun." Akiwa na miaka 20, alilazwa Mathare Hospital — alikuwa akisikia voices. Diagnosed na cannabis psychosis. Family yake ilitumia savings yote kwa treatment. Sasa ana miaka 24 na dawa za maisha yote. "Waliambia haina shida. Yule aliyeniambia bado yuko sawa. Mimi siko."

💡 Cannabis smoke = 3× more tar than cigarettes. 💡 Moshi wa bangi = lami mara 3 zaidi ya sigara. 💡 Moshi wa bangi = tar mara 3 zaidi ya sigara. Most people think cannabis is safer than cigarettes because it is "natural." In fact cannabis smoke contains 3× more tar and 5× more carbon monoxide per puff — making it more damaging to lungs than cigarettes. Watu wengi wanadhani bangi ni salama zaidi kuliko sigara kwa sababu ni "asili." Kwa kweli moshi wa bangi una lami mara 3 zaidi na monoksidi kaboni mara 5 zaidi kwa pumzi — inafanya mapafu zaidi kuliko sigara. Mangi wanadhani bangi ni safer kuliko sigara. Ukweli — kila puff ya bangi ina tar mara 3 zaidi na carbon monoxide mara 5 zaidi. Mapafu yako yanachomeka zaidi kuliko unajua.

🎬 Watch: What Cannabis Actually Does to the Brain Tazama: Bangi Inafanya Nini Ubongoni Watch Hii: Bangi Inafanya Nini Kwa Ubongo

You've covered the science. This video shows what it looks like in real people — and real brains. Pay attention to what happens to the prefrontal cortex. Umeshughulikia sayansi. Video hii inaonyesha kinachotokea kwa watu halisi — na ubongo halisi. Angalia kinachotokea kwa prefrontal cortex. Umesoma science. Sasa watch real people na real brains. Watch sehemu ya prefrontal cortex inayofanywa nini.

🎬

Effects of Cannabis — Module Video Athari za Bangi — Video ya Moduli Bangi Effects — Module Video

Video will appear here once your teacher uploads it. Video itaonekana hapa mwalimu wako akiipakia. Video itakuwa hapa teacher akiupload.

📁 /uploads/media/lesson-02-cannabis.mp4

ARISE Health Education · Mental Health & Drugs · Lesson 2 Elimu ya Afya ya ARISE · Afya ya Akili & Dawa · Somo la 2 ARISE · Mental Health & Drugs · Lesson 2

🔑 While watching, look for: 🔑 Unapotazama, angalia: 🔑 Unatazama, angalia:

How quickly THC reaches the brain after inhalationJinsi THC inavyofika ubongoni haraka baada ya kuvutaJinsi THC inavyofika ubongo haraka ukivuta
The difference between a cannabis user's brain and a non-user's brain scanTofauti kati ya ubongo wa mvutaji na asiyevutaTofauti ya brain scan ya mvutaji na asiyevuta
Why young brains show more damage than older brainsKwa nini ubongo wa vijana unaonyesha uharibifu zaidiKwa nini ubongo ya kijana inaharibiwa zaidi kuliko ya mzee

🎭 Real Talk — What Would You Do? Mazungumzo ya Kweli — Ungefanya Nini? Real Talk — Wewe Ungefanya Nini?

These are situations that actually happen. No wrong answers for thinking — but there ARE better and worse choices. Pick what you'd do and see what happens. Hizi ni hali zinazotokea kweli kweli. Hakuna jibu baya la kufikiria — lakini KUNA chaguzi bora na mbaya. Chagua ungependa kufanya na uone kinachotokea. Hizi situations zinatokea kweli. Hakuna jibu baya — lakini kuna choices better na worse. Chagua yako uone kinachotokea.

📍 It's a Friday evening after school. Jayden (Form 3, Kibera) is with his boys near the stage. An older guy — maybe 20 — rolls up and offers a joint. "Ongea na sisi boss, relax kidogo kabla weekend." Two of Jayden's friends lean in. 📍 Ni jioni ya Ijumaa baada ya shule. Jayden (Darasa la 3, Kibera) yuko na marafiki wake karibu na stendi. Mvulana mkubwa — labda miaka 20 — anakuja akimpa kijiti. "Ongea na sisi boss, relax kidogo kabla weekend." Marafiki wawili wa Jayden wanaelekea. 📍 Friday jioni baada ya shule. Jayden (Form 3, Kibera) yuko na mangi wake karibu na stage. Kijana mkubwa — labda 20 — anakuja akimpa joint. "Ongea na sisi boss, relax kidogo kabla weekend." Marafiki wawili wa Jayden wanaelekea.

What does Jayden do? Jayden anafanya nini? Jayden afanye nini?

❌ Consequence: Jayden just took his first step into addiction. The older guy is a dealer building a customer. THC will reach his brain in 7 seconds. His friends' approval lasts one evening. The damage to his prefrontal cortex starts immediately and compounds with every subsequent use. Baraka from Eastleigh made this exact choice in Form 2. ❌ Matokeo: Jayden amechukua hatua yake ya kwanza kwenye utegemezi. Yule mvulana mkubwa ni muuzaji anayejenga mteja. THC itafika ubongoni ndani ya sekunde 7. Idhini ya marafiki wake inadumu usiku mmoja. Uharibifu wa prefrontal cortex wake unaanza mara moja. ❌ Matokeo: Jayden amefanya step ya kwanza kuelekea addiction. Yule kijana mkubwa ni dealer — anajenga customer mpya. THC itafika ubongo yake kwa sekunde 7. Marafiki wanacheka usiku mmoja. Ubongo inaumia na hailipiki.

⚠️ Safe this time — but: The "phone call" exit works once. But Jayden is still avoiding a direct refusal. Next time it will be a closer friend asking, and the "phone call" excuse won't feel convincing to himself. Learning to say NO directly builds a skill that protects him every time. ⚠️ Salama sasa hivi — lakini: "Simu" inafanya kazi mara moja. Lakini Jayden anaepuka kukataa moja kwa moja. Mara ya pili itakuwa rafiki wa karibu zaidi anayeomba, na usingekuwa na "simu" ya kutoa kisingizio. ⚠️ Salama leo — lakini: "Simu" inafanya kazi mara moja. Mara ya pili itakuwa rafiki wa karibu zaidi. Na hakuna simu itakayomokoa. Jifunze kusema NO direct — hiyo ndiyo skill ya maisha.

✅ This is it. Short, direct, no apology, no long explanation. "Niko sawa" is complete. Jayden doesn't owe that older guy anything — not his time, not his attention, not his health. Walking away with confidence is what respect for yourself actually looks like. His real friends will follow. ✅ Hii ndiyo. Fupi, moja kwa moja, bila kuomba msamaha. "Niko sawa" inatosha. Jayden hana deni kwa yule mvulana — si wakati wake, si makini yake, si afya yake. Kutoka kwa ujasiri ndiyo heshima ya kweli kwa nafsi yako. ✅ Hii ndiyo answer. Fupi, direct, bila apology. "Niko sawa" inatosha kabisa. Jayden hana deni kwa yule dealer — si wakati wake, si ubongo wake. Kutoka na ujasiri ndiyo self-respect ya kweli. Marafiki wake wa kweli watamfollow.

⚠️ Half right: Jayden said no — good. But staying and watching normalises it for himself and puts pressure on him to join next time. Second-hand smoke also enters his lungs. The strongest move is to say no AND move away to somewhere else. ⚠️ Nusu sawa: Jayden alisema hapana — vizuri. Lakini kukaa na kuangalia kunaufanya kawaida kwake na kumweka shinikizo la kujiunga mara ya pili. Moshi wa pili unaingía mapafu yake pia. ⚠️ Half right: Jayden alisema no — poa. Lakini kukaa na kuangalia kunafanya iwe normal kwake na next time atajoin. Second-hand smoke pia inaingia mapafu yake. Best move — sema no NA uondoke.

📍 Amina (Form 4, Mombasa) notices her best friend Sifa has been acting differently for months — easily forgetting things, missing school, becoming aggressive and then weirdly euphoric. She smells it on her sometimes. Sifa denies everything. 📍 Amina (Darasa la 4, Mombasa) anaona rafiki yake wa karibu Sifa amebadilika kwa miezi — anasahau vitu kwa urahisi, anakosa shule, anakuwa mkali kisha furaha bila sababu. Wakati mwingine Amina anamhisi harufu. Sifa anakanusha kila kitu. 📍 Amina (Form 4, Mombasa) anaona best friend wake Sifa amebadilika kwa miezi — anasahau kila kitu, anakosa shule, anakuwa aggressive kisha suddenly happy bila reason. Amina anamhisi harufu mara kwa mara. Sifa anakanusha kila kitu.

What should Amina do? Amina afanye nini? Amina afanye nini?

❌ Dangerous silence: Sifa is showing signs of cannabis addiction and possible early psychosis. "Her choice" stops being a personal matter when someone's brain is being permanently damaged. Zawadi from Kisumu had friends who stayed silent. Those friends watched her be admitted to Mathare at 20. ❌ Ukimya wa hatari: Sifa anaonyesha dalili za utegemezi wa bangi na labda psychosis ya mapema. "Chaguo lake" inaacha kuwa jambo la kibinafsi ubongo wake unapoharibiwa kwa kudumu. Marafiki wa Zawadi walikaa kimya. Wale marafiki waliomwona akilazwa Mathare akiwa na miaka 20. ❌ Ukimya wa hatari: Sifa anaonyesha signs za addiction na labda psychosis ya mapema. "Chaguo lake" inaisha kuwa jambo lake peke yake ubongo wake unapoharibika permanently. Marafiki wa Zawadi walikaa kimya — na waliomwona akilazwa Mathare ana miaka 20.

⚠️ Wrong approach: Public shaming pushes Sifa deeper into hiding and damages trust. People struggling with substance use need safety, not humiliation. She will deny it more firmly and cut off Amina — her best ally. ⚠️ Mbinu mbaya: Kudharau hadharani kunamsukuma Sifa kujificha zaidi na kudhuru uaminifu. Watu wanaopambana na matumizi ya dawa wanahitaji usalama, si aibu. Atakanusha zaidi na kumkata Amina — mshirika wake bora. ⚠️ Wrong approach: Kumshame publicly kunamsukuma Sifa kujificha zaidi. Mtu ana addiction anahitaji safety — si aibu. Atakanusha zaidi na kumkata Amina — ambaye ni the only person anayeweza kumsaidia.

✅ This is friendship: Amina uses care, not judgment. Private conversation preserves trust. "Nakujali" before anything else tells Sifa this comes from love. Offering to go together to the counsellor removes the barrier of going alone. This approach has the best chance of actually helping Sifa. ✅ Hii ndiyo urafiki: Amina anatumia upole, si hukumu. Mazungumzo ya faragha yanalinda uaminifu. "Nakujali" kabla ya kila kitu kumwambia Sifa hii inatoka kwa upendo. Kutoa kwenda pamoja kwa mshauri kunaondoa kikwazo cha kwenda peke yake. ✅ Hii ndiyo urafiki wa kweli: Amina anatumia upole, si hukumu. Private talk inabaki trust. "Nakujali" kwanza inamwambia Sifa hii ni love, si usaliti. Kutoa kwenda pamoja kwa counsellor kunaondoa fear ya kwenda peke yake. Hii approach ndiyo ina best chance ya kumsaidia Sifa.

⚠️ Too fast: Going straight to parents without talking to Sifa first breaks trust and may cause Sifa to deny everything and feel ambushed. The right order: talk to Sifa privately first → if she refuses help → then involve a trusted adult (counsellor or parent). ⚠️ Haraka sana: Kwenda moja kwa moja kwa wazazi bila kuzungumza na Sifa kwanza kunavunja uaminifu. Mpangilio sahihi: zungumza na Sifa faraghani kwanza → akikataa msaada → kisha mhusishe mtu mzima wa kuamini. ⚠️ Haraka sana: Kwenda kwa wazazi moja kwa moja bila kuongea na Sifa kwanza kunavunja trust. Order sahihi: ongea na Sifa faraghani kwanza → akikataa help → kisha mhusishe mtu mzima (counsellor au mzazi).

🛡️ How to Say No — And Get Help if You Need It Jinsi ya Kusema Hapana — Na Kupata Msaada Ukihitaji Jinsi ya Ku-Deny — Na Kupata Help Ukihitaji

Knowing what to say before the moment arrives is the most effective preparation. Practice these — they work. Kujua utasema nini kabla wakati haujafika ndiyo maandalizi bora. Zoea hizi — zinafanya kazi. Kujua utasema nini kabla situation haijafika ndiyo prep bora. Practise hizi — zinafanya kazi.

When they say...Wanaposema...Wanasema...	You say...Unasema...Unasema...
"It's natural — from a plant""Ni asili — inatoka kwa mmea""Ni natural — inatoka kwa mmea"	"Arsenic is also from nature. Natural doesn't mean safe.""Sumu ya arsenic pia inatoka asilini. Asili haimaanishi salama.""Sumu pia ni natural. Natural haimaanishi salama."
"Just one puff — you won't get hooked""Pumzi moja tu — hutategemea""Puff moja tu — huwezi ku-hooked"	"1 in 6 teens who try it get hooked. I don't like those odds.""Kijana 1 kati ya 6 wanaojaribu wanategemea. Sijapenda nafasi hizo.""Kijana 1 kati ya 6 wanaojaribu wanaku-hooked. Sichezi odds hizo."
"Everyone smokes — don't be lame""Kila mtu anavuta — usiwe mlemavu""Kila mtu anavuta — usiwe coward"	"Not everyone. And I choose what enters my brain.""Si kila mtu. Na ninachagua kinachoingia ubongoni mwangu.""Si kila mtu. Na ninachagua kinachoingia kwa ubongo yangu."
"It helps you concentrate / relieves stress""Inasaidia kuzingatia / kupunguza msongo""Inakusaidia ku-focus / kupunguza stress"	"It stays in the brain for 28 days and kills memory. That's the opposite of focus.""Inakaa ubongoni kwa siku 28 na inaharibu kumbukumbu. Hiyo ni kinyume cha kuzingatia.""Inakaa kwa ubongo kwa siku 28 na inakill kumbukumbu. Hiyo si focus — ni opposite ya focus."

💡 Getting Help — NACADA Kenya: 💡 Kupata Msaada — NACADA Kenya: 💡 Kupata Help — NACADA Kenya: Free helpline: 1192. Anonymous, confidential, available 24/7. They are not police — they will not report you. They connect you to free counselling and treatment. Also: Narcotics Anonymous Kenya — free groups in Nairobi, Mombasa, Kisumu, Eldoret. Laini ya bure: 1192. Ya siri, inapatikana 24/7. Si polisi — hawataripoti. Wanakuunganisha na ushauri na matibabu ya bure. Piga simu bure: 1192. Siri, inapatikana saa 24. Si polisi — hawataripoti. Wanakuconnect na counselling na treatment bure. Pia kuna Narcotics Anonymous — groups bure Nairobi, Mombasa, Kisumu, Eldoret.

📝 Practice Problems & Reflection Mazoezi na Tafakari Practice na Reflection

Problem 1 — Science: Tatizo la 1 — Sayansi: Tatizo 1 — Science: Explain why a 16-year-old who smokes bhang every weekend is at greater risk of permanent brain damage than a 28-year-old who starts smoking daily. Link your answer specifically to brain development. Eleza kwa nini kijana wa miaka 16 anayevuta bangi kila wikendi yuko katika hatari zaidi ya uharibifu wa kudumu wa ubongo kuliko mtu wa miaka 28 anayeanza kuvuta kila siku. Unganisha jibu lako hasa na ukuaji wa ubongo. Eleza kwa nini kijana wa miaka 16 anayevuta bangi kila weekend yuko hatarini zaidi ya damage ya kudumu ya ubongo kuliko mtu wa miaka 28 anayeanza kuvuta kila siku. Connect jibu lako na brain development.

Model Answer: The brain's prefrontal cortex — controlling memory, judgment, and decision-making — is still developing until age 25. At 16, this region is actively forming connections. THC at this stage disrupts that formation permanently. A study found teens who started before 18 lost up to 8 IQ points permanently — adults who started at 25+ showed far less lasting damage because their prefrontal cortex was already fully formed. Jibu la Mfano: Prefrontal cortex ya ubongo — inayodhibiti kumbukumbu, hukumu, na kufanya maamuzi — bado inakua hadi umri wa miaka 25. Akiwa na miaka 16, sehemu hii bado inaunda uhusiano. THC katika hatua hii inazuia uundaji huo kwa kudumu. Vijana wanaoanza kabla ya miaka 18 walipoteza hadi pointi 8 za IQ kwa kudumu. Model Answer: Prefrontal cortex ya ubongo — inadhibiti kumbukumbu, maamuzi, judgment — bado inakua hadi miaka 25. Ana miaka 16, sehemu hii bado inaform connections. THC saa hii inazuia formation hiyo permanently. Studies zinaonyesha teens walianza kabla ya 18 walipoteza hadi IQ points 8 permanently — watu wazima walioanza baada ya 25 hawakupoteza hivyo kwa sababu prefrontal cortex ilikuwa tayari complete.

Problem 2 — Critical Thinking: Tatizo la 2 — Fikira Makini: Tatizo 2 — Critical Thinking: Your classmate says: "CBD is legal in some countries as medicine — so cannabis must be safe." Identify TWO errors in this reasoning. Mwanafunzi wenzako anasema: "CBD ni halali katika baadhi ya nchi kama dawa — kwa hivyo bangi lazima iwe salama." Tambua MAKOSA MAWILI katika hoja hii. Mwanafunzi wenzako anasema: "CBD ni legal kwa nchi zingine kama dawa — kwa hivyo bangi lazima iwe salama." Tafuta MAKOSA MAWILI kwa hoja hii.

Model Answer: (1) CBD ≠ Cannabis: Medical CBD is pharmaceutical-grade, contains no THC, and is precisely dosed. Street cannabis contains high THC levels and uncontrolled compounds — it is a completely different product. (2) Legal ≠ Safe: Many legal substances cause serious harm (alcohol, tobacco). Legal status is a policy decision, not a safety certificate. Jibu la Mfano: (1) CBD ≠ Bangi: CBD ya kimatibabu haina THC na inadosiwa kwa usahihi. Bangi ya mtaani ina THC nyingi — bidhaa tofauti kabisa. (2) Halali ≠ Salama: Vitu vingi halali vinasababisha madhara makubwa (pombe, sigara). Hali ya kisheria ni uamuzi wa sera, si cheti cha usalama. Model Answer: (1) CBD ≠ Bangi: Medical CBD haina THC na inadosed precisely. Bangi ya street ina THC nyingi — ni bidhaa tofauti kabisa. (2) Legal ≠ Salama: Vitu vingi legal vinasababisha damage kubwa (pombe, sigara). Legal ni decision ya serikali — si safety certificate.

✍️ My Reflection — Private, saved only on this device ✍️ Tafakari Yangu — Ya siri, imehifadhiwa kwenye kifaa hiki peke yake ✍️ Mawazo Yangu — Siri, imehifadhiwa kwa device hii tu

📊 Quiz — Effects of Cannabis (25 Marks) Jaribio — Athari za Bangi (Alama 25) Quiz — Effects za Bangi (Marks 25)

Complete all three parts. Score 15/25 (60%) to earn your certificate. Kamilisha sehemu zote tatu. Pata alama 15/25 (60%) kupata cheti chako. Fanya sehemu zote tatu. Pata 15/25 (60%) kupata certificate yako.

Part A: Multiple Choice 10 × 1 mark = 10 marks Sehemu A: Chaguo Nyingi 10 × alama 1 = alama 10 Part A: MCQ 10 × mark 1 = marks 10

Koech (Form 3, Eldoret) smokes bhang every Friday. By Monday, he cannot remember what the teacher taught the previous week, even though he pays attention in class. Koech (Darasa la 3, Eldoret) anavuta bangi kila Ijumaa. Kufikia Jumatatu, hawezi kukumbuka mwalimu alichofundisha wiki iliyopita, hata kama anazingatia darasani. Koech (Form 3, Eldoret) anavuta bangi kila Friday. Monday hawezi kukumbuka teacher alichofundisha wiki iliyopita — hata kama alikuwa anasikiliza.

1. Which specific brain region is THC most directly damaging in Koech's case? 1. Sehemu gani maalum ya ubongo inayoathiriwa zaidi na THC kwa Koech? 1. Sehemu gani ya ubongo THC inaidamage zaidi kwa Koech?

A The cerebellum — controls balance and coordinationCerebellum — inadhibiti usawa na uratibuCerebellum — inadhibiti balance

B The hippocampus and prefrontal cortex — memory and learningHippocampus na prefrontal cortex — kumbukumbu na kujifunzaHippocampus na prefrontal cortex — kumbukumbu na learning

C The brainstem — controls breathing and heart rateBrainstem — inadhibiti kupumua na mapigo ya moyoBrainstem — inadhibiti kupumua

D The occipital lobe — controls visionOccipital lobe — inadhibiti maonoOccipital lobe — inadhibiti maono

2. According to research, what percentage of teenagers who start using cannabis develop addiction? 2. Kulingana na utafiti, ni asilimia ngapi ya vijana wanaoanza kutumia bangi wanategemea? 2. Kulingana na research, asilimia ngapi ya teens wanaoanza bangi wanaku-hooked?

A 2% — very rare2% — nadra sana2% — rare sana

B 9% — less than for adults who start later9% — chini ya watu wazima wanaoanza baadaye9% — chini ya watu wazima

C 17% — nearly 1 in 6 teenagers17% — karibu 1 kati ya vijana 617% — karibu 1 kati ya 6 ya teens

D 50% — half of all users50% — nusu ya watumiaji wote50% — nusu ya watumiaji wote

Wanjiku (17, Nakuru) tells her friend: "I only use CBD oil I buy online — it's medical so it's safe and legal." Wanjiku (17, Nakuru) anamwambia rafiki yake: "Natumia mafuta ya CBD tu nianunuaye mtandaoni — ni ya kimatibabu kwa hivyo ni salama na halali." Wanjiku (17, Nakuru) anamwambia rafiki: "Natumia CBD oil tu nununuayo online — ni medical kwa hivyo ni salama na legal."

3. Which statement best evaluates Wanjiku's claim? 3. Kauli ipi inayotathmini vizuri dai la Wanjiku? 3. Statement ipi inayoevaluate vizuri claim ya Wanjiku?

A She is correct — CBD is completely safe for all agesYuko sahihi — CBD ni salama kabisa kwa umri woteYuko sahihi — CBD ni salama kwa umri wote

B Partially correct — CBD doesn't cause a high, but unregulated online products may contain THC and are not legally approved in KenyaSahihi kwa sehemu — CBD haisababishi high, lakini bidhaa zisizodhibitiwa mtandaoni zinaweza kuwa na THC na hazijaidhinishwa kisheria nchini KenyaSahihi kiasi — CBD haikufanya high, lakini products za online zinaweza kuwa na THC na hazijaidhinishwa Kenya

C Completely wrong — CBD and cannabis are the same thingMakosa kabisa — CBD na bangi ni kitu kimojaMakosa kabisa — CBD na bangi ni kitu kimoja

D It doesn't matter as long as she feels fineHaihusiani kwa kuwa anahisi vizuriHaihusiani kama anahisi sawa

4. How many times more tar does cannabis smoke contain compared to cigarette smoke per puff? 4. Moshi wa bangi una lami mara ngapi zaidi kuliko sigara kwa pumzi moja? 4. Moshi wa bangi una tar mara ngapi zaidi kuliko sigara kwa puff moja?

A Same amount as cigarettesKiasi sawa na sigaraSame na sigara

B Twice as much (2×)Mara mbili zaidi (2×)Mara mbili (2×)

C Three times as much (3×)Mara tatu zaidi (3×)Mara tatu (3×)

D Half as much — cannabis is safer to smokeNusu tu — bangi ni salama zaidi kuvutaNusu — bangi ni safer kuvuta

Omondi (Form 4, Kisumu) smokes bhang on Fridays. He says: "I study harder on Saturdays to make up for it — so it doesn't affect my KCSE results." Omondi (Darasa la 4, Kisumu) anavuta bangi Ijumaa. Anasema: "Najisomea zaidi Jumamosi kufidia — kwa hivyo haiaathiri matokeo yangu ya KCSE." Omondi (Form 4, Kisumu) anavuta bangi Friday. Anasema: "Najisomea zaidi Saturday ku-compensate — kwa hivyo haiathiri KCSE yangu."

5. Why is Omondi's reasoning scientifically flawed? 5. Kwa nini hoja ya Omondi ina kasoro ya kisayansi? 5. Kwa nini reasoning ya Omondi ni flawed kisayansi?

A He is correct — studying more compensates for cannabis effectsYuko sahihi — kusoma zaidi kunalipa athari za bangiYuko sahihi — kusoma zaidi kunalipa effects za bangi

B THC stays in the brain for up to 28 days — his Saturday studying is still done on a THC-impaired brain, so retention is reduced regardless of effortTHC inakaa ubongoni kwa siku 28 — kujisomea kwake Jumamosi bado kunafanywa na ubongo ulioathiriwa na THCTHC inakaa kwa ubongo hadi siku 28 — Saturday studying yake bado inafanywa na ubongo iliyoathiriwa na THC — effort inabaki lakini retention inashuka

C Cannabis only affects memory for 24 hours so Saturday studying is fineBangi inaathiri kumbukumbu kwa masaa 24 tu hivyo kujisomea Jumamosi ni sawaBangi inaathiri kumbukumbu kwa saa 24 tu — Saturday studying ni sawa

D The only problem is that bhang is illegal, not that it affects studyingTatizo pekee ni kwamba bangi ni haramu, si kwamba inaathiri masomoTatizo pekee ni kwamba bangi ni haramu — si kwamba inaathiri masomo

6. Cannabis-induced psychosis is most likely to become permanent if it is not treated. What is the name of this permanent condition? 6. Psychosis inayosababishwa na bangi ina uwezekano mkubwa wa kuwa ya kudumu bila matibabu. Jina la hali hii ya kudumu ni nini? 6. Cannabis-induced psychosis inaweza kuwa permanent bila treatment. Jina la hali hii ya kudumu ni nini?

A DepressionUnyogovuDepression

B SchizophreniaSchizophreniaSchizophrenia

C EpilepsyKifafaEpilepsy

D Anxiety disorderUgonjwa wa wasiwasiAnxiety disorder

7. What is the free, confidential NACADA drug helpline number in Kenya? 7. Nambari ya bure ya ushauri ya NACADA nchini Kenya ni ipi? 7. NACADA helpline number ya bure Kenya ni ipi?

A 999

B 1192

C 1195

D 0800 723 253

Jayden's friend says: "My older brother smokes weed every day and he's fine — he's even a mechanic now." Rafiki wa Jayden anasema: "Kaka yangu mkubwa anavuta bangi kila siku na yuko sawa — hata ni fundi wa magari sasa." Rafiki wa Jayden anasema: "Kaka yangu mkubwa anavuta bangi kila siku na yuko sawa — hata ni mechanic sasa."

8. What reasoning error is Jayden's friend making? 8. Kosa gani la mantiki rafiki wa Jayden anafanya? 8. Reasoning error gani rafiki wa Jayden anafanya?

A No error — if one person is fine, cannabis is safeHakuna kosa — kama mtu mmoja yuko sawa, bangi ni salamaHakuna kosa — kama mtu mmoja yuko sawa, bangi ni salama

B Anecdotal fallacy — using one person's experience to dismiss scientific evidence affecting many peopleKasoro ya hadithi — kutumia uzoefu wa mtu mmoja kupinga ushahidi wa kisayansi unaohusika watu wengiAnecdotal fallacy — kutumia experience ya mtu mmoja kupinga scientific evidence ya watu wengi

C Correct reasoning — mechanics don't need brain functionHoja sahihi — mafundi hawahitaji utendaji wa ubongoReasoning sahihi — mechanics hawahitaji brain function

D The brother started as an adult so there is no risk at allKaka alianza akiwa mtu mzima kwa hivyo hakuna hatari kabisaKaka alianza akiwa mzima kwa hivyo hakuna hatari

9. The brain region that controls judgment, decision-making, and impulse control — disrupted by THC during adolescence — is the: 9. Sehemu ya ubongo inayodhibiti hukumu, kufanya maamuzi, na udhibiti wa msukumo — inayoathiriwa na THC wakati wa ujana — ni: 9. Sehemu ya ubongo inayodhibiti judgment, maamuzi, na kudhibiti impulses — inayodisrupted na THC wakati wa ujana — ni:

A AmygdalaAmygdalaAmygdala

B CerebellumCerebellumCerebellum

C Prefrontal CortexPrefrontal CortexPrefrontal Cortex

D Occipital LobeOccipital LobeOccipital Lobe

Amina notices her friend Sifa has mood swings, memory problems, and smells of bhang. Sifa denies it. Amina cares about her friend and wants to help. Amina anaona rafiki yake Sifa ana mabadiliko ya hisia, matatizo ya kumbukumbu, na harufu ya bangi. Sifa anakanusha. Amina anamjali rafiki yake na anataka kusaidia. Amina anaona rafiki yake Sifa ana mood swings, memory problems, na harufu ya bangi. Sifa anakanusha. Amina anamjali na anataka kumsaidia.

10. What is the BEST first step Amina should take? 10. Hatua bora ya KWANZA Amina afanye ni ipi? 10. Step bora ya KWANZA Amina afanye ni ipi?

A Tell all their mutual friends so Sifa feels pressure to stopMwambie marafiki wao wote ili Sifa ahisi shinikizo la kusimamaMwambie marafiki wao wote ili Sifa ahisi pressure ya kusimama

B Have a private, caring conversation with Sifa first — then suggest the school counsellor togetherOngea na Sifa faraghani kwa upole kwanza — kisha pendekeza mshauri wa shule pamojaOngea na Sifa peke yake kwa upole kwanza — kisha suggest school counsellor pamoja

C Mind her own business — Sifa will stop when she's readyAjishughulishe na mambo yake — Sifa atasimama atakapokuwa tayariAjishughulishe na mambo yake — Sifa atasimama ready akiwa

D Call the police immediatelyPiga polisi mara mojaPiga polisi immediately

Part B: Fill in the Blanks 5 × 1 mark = 5 marks Sehemu B: Jaza Nafasi 5 × alama 1 = alama 5 Part B: Fill in the Blanks 5 × mark 1 = marks 5

1. The psychoactive compound in cannabis that causes the "high" is called . 1. Kemikali inayobadilisha akili katika bangi inayosababisha "high" inaitwa . 1. Kemikali katika bangi inayofanya "high" inaitwa .

2. Cannabis smoke contains times more tar than cigarette smoke per puff. 2. Moshi wa bangi una lami mara zaidi kuliko sigara kwa pumzi moja. 2. Moshi wa bangi una tar mara zaidi kuliko sigara kwa puff moja.

3. The human brain does not fully develop until age . 3. Ubongo wa binadamu haukamiliki hadi umri wa miaka . 3. Ubongo ya binadamu haijafika 100% hadi umri wa miaka .

4. THC remains in the brain for up to days after use. 4. THC inakaa ubongoni kwa siku hadi baada ya matumizi. 4. THC inakaa kwa ubongo kwa siku hadi baada ya kutumia.

5. Cannabis is classified as illegal in Kenya under the Narcotic Drugs and Psychotropic Substances Act Cap . 5. Bangi ni haramu nchini Kenya chini ya Sheria ya Dawa za Kulevya Cap . 5. Bangi ni haramu Kenya chini ya Narcotic Drugs Act Cap .

Part C: Short Answer 3 questions = 10 marks Sehemu C: Jibu Fupi Maswali 3 = alama 10 Part C: Short Answer Maswali 3 = marks 10

6. Zawadi started smoking bhang at 14. At 20, she was admitted to hospital with cannabis-induced psychosis. Explain: (a) what cannabis-induced psychosis is, (b) why starting at 14 increased her risk significantly. (3 marks) 6. Zawadi alianza kuvuta bangi akiwa na miaka 14. Akiwa na miaka 20, alilazwa hospitalini na psychosis ya bangi. Eleza: (a) psychosis ya bangi ni nini, (b) kwa nini kuanza akiwa na miaka 14 kuliongeza hatari yake sana. (alama 3) 6. Zawadi alianza kuvuta bangi ana miaka 14. Ana miaka 20, alilazwa hospital na cannabis psychosis. Eleza: (a) cannabis-induced psychosis ni nini, (b) kwa nini kuanza ana miaka 14 kuliongeza risk yake sana. (marks 3)

7. Your classmate says: "Bangi ni natural — inatoka kwa mmea, kwa hivyo haina madhara." Write a response using THREE specific pieces of scientific evidence to challenge this claim. (4 marks) 7. Mwanafunzi wenzako anasema: "Bangi ni asili — inatoka kwa mmea, kwa hivyo haina madhara." Andika jibu ukitumia USHAHIDI TATU maalum wa kisayansi kupinga dai hili. (alama 4) 7. Mwanafunzi wenzako anasema: "Bangi ni natural — inatoka kwa mmea, kwa hivyo haina madhara." Andika response ukitumia USHAHIDI TATU wa kisayansi kupinga claim hii. (marks 4)

8. Baraka (Form 4, Eastleigh) wants to stop smoking bhang before KCSE. He has tried twice but says the cravings are too strong. What TWO specific steps would you advise him to take, and why? (3 marks) 8. Baraka (Darasa la 4, Eastleigh) anataka kuacha kuvuta bangi kabla ya KCSE. Amejaribu mara mbili lakini anasema tamaa ni kali sana. Hatua MBILI maalum ungempendekeza, na kwa nini? (alama 3) Baraka (Form 4, Eastleigh) anataka kuacha bangi kabla ya KCSE. Amejaribu mara mbili lakini cravings ni strong sana. Steps MBILI maalum ungempendekeza, na kwa nini? (marks 3)

You scored below 60%. Review the lesson and try again — you've got this! Ulipata chini ya 60%. Rudia somo na jaribu tena — unaweza! Ulipata chini ya 60%. Rudia lesson na jaribu tena — unaweza!

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