Marijuana (cannabis) is the **most widely used illegal drug globally**, but legalization and decriminalization have created a dangerous myth that it's harmless. Modern **high-potency marijuana** (15-30% THC vs. 3-5% in the 1990s) causes **Cannabis Use Disorder** in 30% of users who started as teens, triggers psychosis (5x risk with daily high-potency use), and impairs brain development in adolescents. In South Africa, cannabis use prevalence is **7.8%—double the global average**—and decriminalization in 2018 has increased adolescent use and mental health admissions. South Africa offers comprehensive marijuana addiction treatment with expertise in high-potency cannabis at 60-70% cost savings.
Marijuana is the dried flowers, leaves, and stems of the **Cannabis sativa or Cannabis indica** plant. The UNODC World Drug Report 2025 estimates that 219 million people used cannabis globally in 2021, making it the most widely used illicit drug worldwide. The primary psychoactive compound is **THC (delta-9-tetrahydrocannabinol)**, which produces the "high" by binding to cannabinoid receptors in the brain.
While marijuana has been used for thousands of years, **modern marijuana is fundamentally different** from what previous generations consumed. Through selective breeding and cultivation techniques, today's marijuana contains **15-30% THC** compared to **3-5% in the 1990s**—a 3-5x increase in potency that dramatically increases addiction and psychosis risks.
Appearance: Dried green/brown plant material
Use: Smoked in joints, blunts, pipes, or bongs
THC: 15-25% (modern strains)
Effects: Onset 5-10 minutes, lasts 2-4 hours
Types: Wax, shatter, dabs, hash oil, BHO
Use: Vaporized/"dabbed" with special equipment
THC: 60-90% (ultra-high potency)
Danger: Extreme addiction/psychosis risk
Forms: Brownies, gummies, candies, drinks
Use: Eaten or drunk
Effects: Delayed onset (30-120 min), lasts 4-8 hours
Danger: Easy to overconsume, intense high
Appearance: Pre-filled vape pens
Use: Inhaled vapor (discreet, no smell)
THC: 70-90% (very high potency)
Danger: Easy to hide, frequent use
Marijuana is sold under various street names:
In 2018, South Africa\'s Constitutional Court **decriminalized personal cannabis use**, allowing private cultivation and consumption. While intended to reduce criminalization, this has led to:
This makes South Africa a **critical case study** in cannabis policy—understanding the real-world consequences of decriminalization and the need for evidence-based treatment.
Despite the "marijuana isn't addictive" myth, **Cannabis Use Disorder (CUD)** is a clinically recognized addiction affecting **9% of all users** and **30% of users who started as teenagers**.
Legalization and cultural acceptance have created a dangerous myth that marijuana is harmless. The reality: **high-potency modern marijuana causes serious, often permanent damage**, especially to adolescent brains.
The adolescent brain is still developing until age 25. Marijuana use during this critical period causes **permanent damage**:
⚠️ These changes persist even after quitting—the damage is permanent.
High-potency marijuana dramatically increases psychosis risk:
In South Africa, the mental health system is overwhelmed with cannabis-induced psychosis cases following decriminalization.
Smoking marijuana damages lungs similarly to tobacco:
While not everyone who uses marijuana progresses to other drugs, research shows:
**This is not your grandparents' marijuana.** Modern cannabis is fundamentally different:
1990s Marijuana:
Modern Marijuana:
Research on marijuana's safety was conducted on **low-potency cannabis**. Today's ultra-high-potency products are essentially **a different drug** with dramatically higher risks.
Marijuana withdrawal is **not life-threatening** (unlike alcohol or benzos), but symptoms are uncomfortable and drive many users back to the drug.
There are **no FDA-approved medications** for marijuana addiction. Drug-free approaches like Narconon's program are ideal:
South Africa\'s experience with cannabis decriminalization makes it a **leader in evidence-based treatment**:

Addiction Recovery Advocate & Researcher
Tony Peacock overcame his own drug and alcohol addiction 32 years ago. After discovering drug-free recovery, he dedicated his life to helping South African families and addicts find real solutions that actually work. He created RehabNews.co.za to share research on effective, drug-free addiction treatment options available in South Africa.
Read Full BioExplore the controversial disease model of addiction and discover why the answer matters for recovery.
Read MoreDiscover the neuroscience of addiction and the hopeful truth about neuroplasticity.
Read MoreWhy the psychiatric model is failing South Africa and how to reclaim traditional healing wisdom.
Read MoreGet expert marijuana addiction treatment in South Africa with high-potency THC expertise at 60-70% cost savings. Comprehensive care addressing brain damage, cognitive impairment, and amotivational syndrome. Confidential consultations available 24/7.