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The Cannabis Question I Full Documentary I NOVA I PBS

NOVA PBS Official | October 24, 2025



Official Website: https://to.pbs.org/3AP3DP6 | #TheCannabisQuestion

As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.

NOVA investigates the story of cannabis from the criminalization that has disproportionately harmed communities of color to the latest medical understanding of the plant. What risks does cannabis pose to the developing brain? How much do we know about its potential medical benefits? As cannabis becomes socially accepted, scientists are exploring its long-term health consequences.

Chapters
00:00 Introduction
03:40 How Cannabis Affects the Brain
10:26 Epilepsy Case Study: Medical Uses of Cannabis and CBD
20:37 Autism Case Study: Medical Uses of Cannabis and CBD
26:18 How Age Affects the Impact of Cannabis
34:10 The Criminalization of Cannabis
41:03 Using Cannabis to Treat Chronic Pain
43:13 Risks of Using Cannabis Daily
47:54 What Does the Future Hold for Cannabis?

(Premieres Wednesday, September 29 at 9PM ET on PBS.)

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Written by NOVA PBS Official

Comments

This post currently has 27 comments.

  1. @zapcos80

    October 24, 2025 at 11:30 pm

    In the land of the free…
    Nothing like a good Crime Against Humanity. In Canada, we have received no apology from anyone who supported or financially benefited from prohibition. Just phony moral high ground claiming cannabis re-legalization fights crime.

  2. @seanbrown2654

    October 24, 2025 at 11:30 pm

    I am a 58year old man . I have consumed cannabis for 45 years of my life . I work I own a home I have happy healthy productive kids .

    I am what would be considered a” heavy user “ and have been my whole life . The biggest harm I see with cannabis use is social stigma and criminalization .

    Legalize cannabis now .

  3. @UnseenDetails-f8n

    October 24, 2025 at 11:30 pm

    Everyone migrated into south east Michigan and built neighborhoods or fake ones for them all to listen to a band play at least one song that’s was Asia and called Heat of the moment, that continent just mean fans of the band Asia. It wasn’t actually called Asia it was called china. Animals suck that’s what they all did here and lie about it. You’re all just supposed to focus on online and actual business with computers and things. Everything else was stoner hippie shops, there was always a Walmart or something for other places that existed.

  4. @charlie-ux7nw

    October 24, 2025 at 11:30 pm

    A long time ago it had interesting news and stories. Now, too much woke biss. I'll never watch it again. What a waste of time.
    I think it's funny that they have to beg for money. They get what they deserve. What a useless thing. No value here.

  5. @stevenbone6849

    October 24, 2025 at 11:30 pm

    No pill from a pharmacy can do better, believe me I'm at 63 yrs old no varicose veins period I can walk and mile without even taking a 2nd breath no need to rest just take a drink of a cold coca cola and keep goin

  6. @TheAtHamptonDotCom

    October 24, 2025 at 11:30 pm

    i came looking for some older episodes for nostalgia bait, there's no point in watching modern Nova or Nature anymore. Real Science, and Real Engineering make better, more up-to-date, more relevant, more informative, more dense, videos without the arbitrary and counterproductive input of any """""tv""""" """"""""""Executives""""""""""

  7. @20EIGHTY4PICTURES

    October 24, 2025 at 11:30 pm

    There has been a debate for generations as to why God allowed marijuana to cultivate on Earth alongside the further suggestion that it is a weed. In the beginning there were no cannabis clubs and supportive porn market for single men for God created Women for Man but as time went by men and women wanted more and knew they could steal from their brothers and sisters by setting some of them up and taking their share of what God rightly reserved for them and hence commerce was born. The supermarkets were quick to follow on chance places to meet whilst health food aisles mocked the sick so God gave all a warning with Covid 19

  8. @richardwilliamsmusic

    October 24, 2025 at 11:30 pm

    Drugs including Marijuana is a plague for anyone that uses it recreationally. As for medical, it's been hijacked and abused to be used recreationally. If there is any true medicinal use, it should be tested and studied by legitimate doctors/FDA etc. And then it should only be used for the appropriate uses and benefits that it is diagnosed because anything other than that is abuse of the drug and harmful. There are legitimate and positive uses of opiods and even fentanyl, but ONLY within the confines of correct, tested, and appropriate diagnosis, not just going ad hoc and making up your own ideas of how to use the drug. That's abuse of it. If the question is anxiety, pain, or other issues, drugs are NOT the answer. Try healthy living, a safe environment with good friends. Try counseling. When using any kinds of medications/drugs it needs to be taken accorrding to appropriate dosage and according to tested instructions on how to use it NOT abuse it. You can abuse even Tylenol if you take it apart from how its prescribed. There is no prescription for marijuana and people are just abusing it left and right. Until it's proven to be clinically safe according to strict parameters it is unsafe to use, and definitely 100% unsafe and destructive to use recreationally. Another suggestion to have a better life is to try seeking Jesus Christ. He's the ultimate source of help for our issues. He healed the sick and can help either directly or point you towards the right direction to get the right last emotional, physical or mental healing churchofjesuschrist.org

  9. @smilemcgee6479

    October 24, 2025 at 11:30 pm

    excuses, cannabis has been around for like centuries and no one knows the effects is mind boggling, i guess kinda like all the money being poured into cancer research and they still have not released the cure , since cancer makes people so much money…it's always down to money…..they know the long term use of cannabis, they just wont do it sicne it makes so much money for prisons….good thing in Canada they legalized cannabis, instead of weasting tax payers money and the courts time for a few grams of it lol, imagine going to jail for being a legal user of cannabis, doctor orderd, now that is messed up….

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