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Growing evidence suggests marijuana may be linked to certain heart problems. What's not clear is whether the heart risks are from smoking or if it’s the THC in weed that could be harmful.
A 2013 literature review said that exposure to cannabis was "associated with diseases of the liver (particularly with co-existing hepatitis C), lungs, heart, and vasculature". The authors cautioned that "evidence is needed, and further research should be considered, to prove causal associations of marijuana with many physical health conditions ...
Older marijuana users are at a high risk of heart attack and stroke, while older daily users are 34% more likely to develop heart failure, according to new studies. ... similar to the effects of ...
Any use of marijuana could raise the risk of heart attack and stroke, even in people who don’t use cigarettes or don’t have existing heart disease, a new study finds.
The health effects of cannabis smoke are an area of active study. A 2007 study found that while tobacco and cannabis smoke are quite similar, cannabis smoke contained higher amounts of ammonia , hydrogen cyanide , and nitrogen oxides , but lower levels of carcinogenic polycyclic aromatic hydrocarbons (PAHs). [ 24 ]
That marijuana is associated with heart problems is a very urgent message for Americans to be aware of, Wu said, as 1 in 5 people over age 12 now report having used marijuana in the last year ...
The effects last for two to six hours, depending on the amount used. At high doses, mental effects can include anxiety, delusions (including ideas of reference), hallucinations, panic, paranoia, and psychosis. There is a strong relation between cannabis use and the risk of psychosis, though the direction of causality is debated.
A new scientific statement from the American Heart Association is shedding light on the potential dangers of marijuana use for those with cardiac issues.