How bad is marijuana for you?
Posted: 01/11/2012
Questions have long remained about marijuana's long term effect on lung functioning.
A new study finds that even though most pot smokers tend to inhale deeply and hold the smoke in for as long as they can before exhaling, the lung capacity didn't deteriorate.
This was true even among those who smoked a joint a day for seven years or once a week for 20 years.
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