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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 ...
Nearly half of U.S. states now permit recreational marijuana, but studies say there are risks to frequent usage.
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 ]
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 ...
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.
Scientists analyzed data on nearly 435,000 patients, ages 18 to -74, to see if there was a link between marijuana use and a higher risk of heart disease, stroke, or a heart attack.