Is Marijuana Bad For You? Gum Disease Caused By Long-Term Cannabis Smoking, But No Lung Cancer, Heart Disease

There’s some good news and some bad news for pot smokers everywhere. The good news: Just as many of them surely contend, long-term marijuana use doesn’t cause the types of health problems that cigarettes do, such as lung cancer and heart disease. The bad news: It does cause poorer gum health.

That’s according to a long-term study in New Zealand published Wednesday in the Journal of the American Medical Association. Researchers analyzed nearly 1,000 people born in that country in 1972 and 1973, and followed them from birth to 38, analyzing self-reported weed use at 21, 26, 32 and 38, according to the Oregonian.

“In general, our findings showed that cannabis use over 20 years was unrelated to health problems in early midlife,” the study said.

Marijuana plants grow at Perennial Holistic Wellness Center in Los Angeles, Sept. 7, 2012. Photo: David McNew/Getty Images

The study's results are good news for...

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