NY TIMES – A large new government study has found that smoking marijuana on a regular basis, even over several years, does not impair lung function.
The new research is one of the most extensive looks to date at whether long-term marijuana use causes pulmonary damage, and specifically whether its impact on the lungs is as harmful as smoking cigarettes. The researchers followed more than 5,000 people over two decades and found that regularly smoking marijuana — the equivalent of up to a joint a day over seven years — did not impair performance on a lung function test. The test, a measure of pulmonary obstruction that looks at the amount of air a person can force out in one second after taking a deep breath, is typically worsened by smoking tobacco.
Okay, well maybe not “good” but it doesn’t cause lung damage! In other news, marijuana still causes weight gain (see the Funyun effect).