Effects of Cannabis (Marijuana) on Adolescent & Young Adult Brain | Dr. Andrew Huberman

TL;DR

Cannabis use can have serious negative effects on the developing brain and body, increasing the risk of mental health disorders such as psychosis, bipolar disorder, and schizophrenia.

Transcript

ANDREW HUBERMAN: Cannabis is a unique instance in which nowadays we are hearing, yes, it's becoming legal in a number of areas, and we talked earlier about why that's probably a good thing in most circumstances, but that we aren't just hearing that cannabis is safe or it's not just being implied that cannabis is safer, but many more people are talk... Read More

Key Insights

• 🥺 Cannabis legalization has led to increased discussions about the positive effects of cannabis, overshadowing the potential negative effects on the developing brain.
• 😒 The brain continues to develop until at least age 25, and cannabis use during this period can disrupt essential processes related to mood regulation and executive function.
• 😒 A systematic review in Lancet Psychiatry shows that chronic and heavy cannabis use is associated with a higher risk of mental health disorders, including psychosis, bipolar disorder, and major anxiety disorder.
• 😒 The risk of developing psychosis is four times higher with heavy cannabis use, especially in individuals with a genetic predisposition.
• 😒 The perception that cannabis is not as harmful as alcohol and may have health benefits contributes to increased cannabis use among young individuals aged 16 to 24.
• 😒 Young people may be unaware of the serious health consequences of cannabis use later in life due to misleading media portrayals and societal perceptions.
• 👏 The potency of THC in cannabis strains is increasing, further raising the risk of mental health disorders unless cannabis use is reduced or limited to low frequency and potency.

Questions & Answers

Q: Is cannabis use safe for adults?

Cannabis can be used safely by adults in moderation and within a safe and legal context. However, it is important to note that the focus of concern is on the developing brain and body of young individuals.

Q: How does cannabis use affect the developing brain?

Cannabis, especially THC, disrupts the fine-tuning of neural circuits responsible for mood regulation and executive function. This can have long-term consequences on an individual's ability to plan, execute plans, and become a functional human being.

Q: What did the systematic review in Lancet Psychiatry reveal?

The review found that chronic and heavy cannabis use, defined as more than twice per week, is consistently associated with an increased risk of mental health disorders. Heavy cannabis use is linked to a four times higher risk of developing psychosis, particularly in individuals with a genetic predisposition to bipolar disorder and schizophrenia.

Q: Why is it concerning that cannabis potency is increasing?

With the availability of cannabis strains with higher THC potency, the risk of developing psychosis or other mental health disorders is rising. It is important to reduce the frequency and potency of cannabis use in young individuals aged 25 or younger to mitigate these risks.

Key Insights:

• Cannabis legalization has led to increased discussions about the positive effects of cannabis, overshadowing the potential negative effects on the developing brain.
• The brain continues to develop until at least age 25, and cannabis use during this period can disrupt essential processes related to mood regulation and executive function.
• A systematic review in Lancet Psychiatry shows that chronic and heavy cannabis use is associated with a higher risk of mental health disorders, including psychosis, bipolar disorder, and major anxiety disorder.
• The risk of developing psychosis is four times higher with heavy cannabis use, especially in individuals with a genetic predisposition.
• The perception that cannabis is not as harmful as alcohol and may have health benefits contributes to increased cannabis use among young individuals aged 16 to 24.
• Young people may be unaware of the serious health consequences of cannabis use later in life due to misleading media portrayals and societal perceptions.
• The potency of THC in cannabis strains is increasing, further raising the risk of mental health disorders unless cannabis use is reduced or limited to low frequency and potency.
• Education and awareness about the negative effects of cannabis on the developing brain and body are crucial to prevent future health issues related to cannabis use.

Summary & Key Takeaways

• Cannabis is becoming increasingly legal, and while there are known positive effects for adults, it is important to acknowledge the negative effects on the developing brain and body of young individuals aged 14 to 25.

• The brain continues to develop until at least age 25, and cannabis, particularly THC, can disrupt crucial processes related to mood regulation and executive function.

• A systematic review published in Lancet Psychiatry shows that chronic and heavy cannabis use during adolescence and young adulthood is associated with a higher risk of mental health disorders, including psychosis, bipolar disorder, and major anxiety disorder.