A new and exciting study published in the Annals of the American Thoracic Society finds that smoking a joint a day doesn’t actually affect your lung capacity [via Medical Daily].
Researchers at Emory University concluded that adults who smoked one joint a day had similar lung capacity to nonusers. Basically, if you smoke one joint a day (even if you smoke once a day for more than 20 years!), you are still able to breathe about the same as you would if you’d never smoked.
The results of this research echo results from previous studies.
Of course, there’s proof that marijuana users are more likely to report minor symptoms like coughing and a sore throat, but such is life. These symptoms also appeared less often when smokers used vaporizers, which heat marijuana enough to release active chemicals without combustion.
One study conducted by researcher Donald P. Tashkin at UCLA in 2013 did reach a mixed conclusion about the impact of heavy long-term use. Tashkin notes that heavy smoking has been linked to a loss in the functions of white blood cells present in the lung as well as a thinning of cilia that filter air coming in to the lungs. But overall, he concluded that regular marijuana use does not appear to lead to significant changes in lung function.
The new study notes that moderation is key though. It doesn’t exactly specify that if you smoke six joints a day (for 20 years!) that your lungs won’t be affected, so, you know … be chill, man. http://www.cosmopolitan.com/health-fitness/news/a35543/lung-function-ok-with-weed/