Interesting study out of UCSF today. As Shuka Kalantari reports on KQED's State of Health blog...
Smoking an occasional marijuana joint isn’t bad for your lungs. In fact, lighting up once in a while may increase lung function, according to researchers at University of California, San Francisco.
The UCSF study, released today, looked at the pulmonary functions of 5,000 men and women over a 20 year period. It found that those who smoked marijuana for up to seven “joint-years” had a slight increase in lung capacity. What the heck is a “joint-year”? It’s defined as an average of one joint a day for seven years, or about one a week for 49 years.