Harvard Health Letter

Pot smokers can maybe breathe a little easier

Moderate consumption of marijuana doesn't adversely affect lung function, according to a study. A study published in 2012 in The Journal of the American Medical Association (JAMA) had some good news for people who smoke marijuana: smoking at a rate of one joint a day for as long as seven years doesn't seem to affect lung function adversely. And then there was the really good news for pot smokers: smoking marijuana in moderation may actually improve lung function, perhaps because inhaling gives the lungs and the chest muscles a bit of a workout.
To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »