Marijuana long-term health effects

Studies indicate that both the acute and chronic effects from smoking marijuana often mirror the short-term and long-term effects associated with smoking tobacco. Smoke is made up of both solid and gas particles. The inhalation of hot gases combined with volatile tars (and other particulates) can be very harmful to the lungs, throat, and bronchial tubes. Short-term health effects from smoking marijuana can... 

Chronic effects are frequent, habitual, and long-term. Investigators are also very interested in the chronic health effects of marijuana and THC and their influence on the lives of teenagers. The scientific literature discusses health effects of marijuana on bodily systems. 

The clinical significance of these changes, if any, is still obscure. There are some data suggesting that subjects with diseases with impaired cell-mediated immunity, such as cancer, acute viral infections and uraemia are likely to have lower active T-ceH rosettes, and the active rosette test may be particularly sensitive in this respect. Only long-term studies of the health record of marijuana users as compared with valid controls are ever likely to elucidate the ultimate effects of those changes, if any. 

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