Clearing the Smoke: The Science of Cannabis

Clearing the Smoke: The Science of Cannabis

8.36
12345678910
Ratings: 8.36/10 from 69 users.

Montana PBS's new documentary, Clearing the Smoke, reveals how cannabis acts on the brain and in the body to treat nausea, pain, epilepsy and potentially even cancer.

Extensive interviews with patients, doctors, researchers and skeptics detail the promises and the limitations of medicinal cannabis. Even though the video has an American perspective, marijuana use is illegal throughout many countries of the world for reasons that are not clear.

This video is important because it mainly investigates the scientific basis underlying the medical benefits of marijuana use instead of focusing on the social, political and legal hysteria that have been attached to it.

More great documentaries

276   Comments / Reviews

Leave a Reply to Roxanna Trahan Cancel reply

  1. If you can get a legal script for actual meth (Desoxyn) then THC is 100% a legit medication

    Reply
  2. first we need to find a way to destroy the government system. Its all where it is wrong .

    Reply
  3. If for no other reason to use it, is the fact cancer patients lose so much weight because they have no desire to eat.....The cannabis increases their appetite...

    Reply
  4. I'm really tired of these monotone like documentaries. Why can't someone bring a documentary that is both educational and interesting?

    Reply
  5. 5. A neurotransmission system in the brain that affects pleasure, memory, perception, and coordination is 20 percent less active in regular marijuana smokers than in non-marijuana smokers.

    So that’s why you suck at Ping-Pong. The National Institute of Mental Health– and National Institute on Drug Abuse–affiliated researchers who conducted the study that yielded this stat used positron emission tomography to compare the brains of otherwise healthy daily marijuana smokers with the brains of otherwise healthy nonsmokers. They found that the cessation of marijuana use corrected the problem.Dope!

    Reply
  6. According to the study that yielded this stat, “The confirmation of the presence, in both mainstream and sidestream”—that is, directly inhaled and secondhand—“smoke of marijuana cigarettes of known carcinogens and other chemicals implicated in respiratory diseases is important.” This Canadian government-affiliated study also found three times as much ammonia in secondhand marijuana smoke as in secondhand tobacco smoke.

    David Moir, et al. “A Comparison of

    Reply
  7. Lung Cancer, heart disease from Smoking, dumb stoned A__ H____S living wasted lives, ending up in S____, some of us have survived many of our friends have died from Smoking grass, from Lung cancer. Sure if you have cancer it sounds fine, go ahead, but dont smoke it, eat it. Live long.

    Reply
  8. About the confusion over 'skunk'! It is just a specific strain, like Kush, Cheese, Diesel, Blueberry, White Widow et al. The media have jumped on this word and apply it to all strong cannabis, but that is because they don't know what they are talking about.
    It doesn't matter if it is grown indoors hydroponically, indoors in compost, or outdoors, if the seed came from a 'skunk' plant, then the plant will be 'skunk', likewise, if the seed was from a 'Smellyberry', then the plant will be a 'Smellyberry' regardless of how it was grown.
    Cannabis is not genetically modified, it is selectively bred, exactly the same way apples, roses, corn, wheat, dogs, horses, cattle etc. have been for millenia.
    Education people! It will set you free!

    Reply
  9. @ Jennifer Grinberg

    Educate yourself!
    The benefits of medical cannabis far outweigh the risks, even when smoked. As a pain-killer it is as effective and less toxic than most pharmaceutical pain-killers. It has anti-emetic properties (stops people being sick while on chemotherapy), and has been proven to kill certain types of cancer cells.
    It is also less carcinogenic than tobacco when smoked pure and can actually help promote lung function.
    If you like, I can point you to loads of scientific studies that show how beneficial cannabis can be, but I guess you are one of the 'sheeple' that believes the lies and propaganda.

    Reply
  10. @ Jennifer Grinberg.

    Hi

    I am a final year med student in the UK could you post your reference list please.

    I think your confused, 'mycotoxin' means a toxin (endo or exo) produced by any member of the kingdom fungi that basically has a negative effect on other species cells.

    What you are suggesting is that ingestion of cannabis (a plant) causes fungal septicaemia. I can assure you this is unheard of. We most commonly see this presentation in IV drug users due to 'dirty needles' and poor injection site hygiene.

    If you have evidence to the contrary i would be happy to see it.

    Reply
  11. For all you "scientists" making comments here, what do you really know about the effects of weed at the cellular level? Vaporize to rid yourself of the burning sensation? Like anything that alters the mind, it would indicate a disorganization of the "normal" cells into an abnormal condition. Upon looking at the red blood cells of an individual who routinely smokes or vaporizes weed, it is evident of the damage done to the life giving red cells which have changed their form into morbid mycotoxins, no longer able to optimally carry out their function of bringing nutrients & oxygen to all parts of the body. Simple! Change the environment of the inner terrain by the introduction of the weed which releases toxins, changes the red cell, just as pollutants in the air (environment) changes what lives & breathes in it.

    Reply
  12. It is my understanding that the only reason it is illegal now is because there is not a defined economic investment that the government can benefit from. Considering the statistics of the something two drugs in terms of fatalities let alone addictions compared to cannabis as well as the notation that alcohol (which is proven to be more harmful) is legal, it is such a mystery to me as to how we haven't overcome our pride to legalize it.

    Reply
  13. The original intent of controlling Marijuana AND Hemp came about because the newly formed oil industry early in the 19th century felt threatened by the multitude of products made from Hemp that competed with petroleum. It used to be illegal NOT TO GROW Hemp in the 17th and 18th century- the war on Marijuana is all about monetary control.

    Reply
  14. An excellent documentary. Very informative. If Professors talking about their experiences doesn't inform and enlighten then nothing other then personally experiencing it will.
    More to the point, what right does anyone have to tell someone they can't have the medicine they need, merely because they don't believe or agree. Shame on the law-makers who continue to withhold medicine from suffering people.

    Reply
  15. Skunk, skunk and more skunk. Is that all the weed you people know. Man, there are so much more GOOD flavors, strong.. yes, but o so nice.... I'm from, you guess't it, the Netherlands. I tend to smoke a lot and recently i started using a Vaporizer to get rid of the burning process. It has opened my eyes. Even the strongest weeds are smooth and the flavor is so full. Beets burning weed hands down....

    Deaths by blowing in the Netherlands: Nil, nada, nothing, none and zero...
    Deaths by alcohol in the Netherlands: Don't even get me started... A lot..

    Reply
  16. ps.... don't that one doc look like Mr. Rogers!!!

    Reply
  17. So natural isn't good enough, it's the pill form, the control form, not full of naturally things but man made up things, in which justifies it's legal status?.... now i'm not a user of cannabis, Although I'm not ashamed to say I've tried it as many have... but some things just don't sit right with me about this whole situation... There are many proven sciences that say organic is the best and healthiest way to go. There is plenty of logic to that, now I'm curious to know why is it that Government still ignorantly proclaims otherwise?

    Reply
  18. And now....I will comment on Weed or SKUNKWEED, Bud, pot, Mary Jane, S***, Stuff ad nauseum. This simple plant, which contains at least, 105 chemicals, was used as a medicine for at least (again with the at least...give it up already) 5000 years. Was suddenly at completely made illegal by Harry Amslinger...what else did the Government give this guy the task to eradicate?

    I rest my case. I need a joint.

    Reply
  19. anyone having trouble obtaining or growing legal ganja in the U.S. needs to relocate to California. i have had a 'scrip for the past 5 years, costs 40 dollars to obtain, the shops are cheap and plentiful with good product, and anyone with rec. can grow 6 plants a turn. my wife and i turn 12 plants in our closet 3 to 4 times a year and have not paid for weed, hash, or baked goods in over a year.

    Reply
  20. fantastic documentary on the subject. as a long-time suffer of an autoimmune disease, I sympathize with the testimonials.
    I had no idea that there was so much science on the topic. I was stunned to hear that our bodies naturally produce cannabinoids and that they also kill cancer. (what??!! why don't we know more about this??? oh yeah...)
    Damn politics! So much science is either not conducted or never published because it won't sell or there is no profit to be made. Scientific funders are so nervous about the social stigmas that real, life-changing studies never get approved. it sickens me. I was going to pursue a PhD in biology but decided against it because I thought the politics were too much -- I am inspired by the persistence and determination of these trail-blazing scientists who have lead the way - thank you!

    Reply
  21. More evidence the government does not represent the people that elect it but the special interests that buy it.

    Reply
  22. Stoned now. Great.

    Reply
  23. Smoke 'em if you got 'em.;)

    Reply
  24. but oxies can be legal? smoke an herb, or ingest synthetic medical grade heroine.....

    Reply
  25. that doctors a geeeeek "smoking dope for medication" government paid for sure

    Reply