The hazards of marijuana smoking for females increases during pregnancy. Not only does the mother hurt herself, but she can also hurt the unborn baby. Research has shown that the offspring from pot smoking mothers grow more slowly and are more likely to have learning difficulties. Marijuana is especially harmful to the lungs because users often inhale the unfiltered smoke deeply and hold it in their lungs as long as possible. Since the smoke is in contact with lung tissue for long periods of time, the lungs become more irritated and damaged than when smoking tobacco.
Scientists know that tobacco causes lung cancer.
One joint of pot deposits 11 times the amount of tar and 5 times as much carbon monoxide as a cigarette does. Many pot smokers also smoke tobacco. That is double trouble for their lungs. The body protects itself against disease through its immune system. Scientific evidence also shows that marijuana causes a decrease in the rate of cell division.