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Interview with UCSF's Dr. Mark J. Pletcher about his study on marijuana's effect on lungs

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Uploaded by on Jan 9, 2012

http://www.ucsf.edu/news/2012/01/11282/marijuana-shown-be-less-damaging-lungs...
UCSF's Dr. Mark J. Pletcher talks about the finding in his study that suggests low to moderate use of marijuana is less harmful to users' lungs than exposure to tobacco, even though the two substances contain many of the same components.

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  • @ron7006 6) Slow motion flip turns.

    THIS.

  • TYPE IN (MY BIO / REVOLUTION). IT IS ON THE FIRST 1 on PAGE . WATCH IT ! I HAVE NOT SEEN NOTHING LIKE THIS MY WHOLE TIME ON YOUTUBE . all I CAN SAY IT IS A FUCKIN REVOLUTIONARY TIME PIECE

    Ps. I am not a spammer I am the MESSENGER!

  • I'm fully convinced about smoking marijuana before swimming. 1) I'm more relaxed 2) I float better 3) I hold air longer and more comfortably 4) I swim faster, farther & need fewer strokes per length 5) I can isolate and work on certain areas easier(the kick, breathing, balance, minimizing drag, etc) 6) Slow motion flip turns 7) I'm more focused 8) It's more fun. 9) It feels awesome to break into a sprint in order to pass somebody 10) I'm high!
  • The drawbacks of being high while swimming

    1) I don't keep track of the laps very well. (But can if I really feel like it)

    2) I may overexert myself by swimming too fast. (Noticed afterward, when I feel like a nap)

    3) Sometimes I stay in too long and have to pay an extra euro fifty for an extra hour.

  • who would have guessed

    

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