- Regular marijuana smoking can damage bronchial passage cells which makes you more susceptible to getting pulmonary infections. Marijuana can contribute to chronic bronchitis, lung inflammation and possibly lung cancer. However, the link between marijuana and lung cancer has not yet been proven irrefutably.
- Marijuana has been shown to be an immuno-suppressant in some research studies. It can weaken immune mechanisms.
- Long-time marijuana users may develop brain abnormalities (see Resources below). Specifically, marijuana use may shrink the hippocampus, which regulates emotion and memory.
- Smoking marijuana may trigger panic attacks, delusions, paranoia and other mental illnesses.
- Marijuana use may impair memory for up to six weeks after having smoked or consumed the marijuana. This can inhibit learning.
- Individuals who smoke marijuana on a regular basis may experience withdrawal symptoms when the drug is not available.
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