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Ultimately, the researchers concluded that the people who really should be avoiding marijuana smoking altogether are those with pre-existing heart disease, estimated to be about 1 in 20 Americans.
Marijuana impacts young people's mental development, their ability to concentrate in school, and their motivation and initiative to reach goals. And marijuana affects people of all ages: Harvard University researchers report that the risk of a heart attack is five times higher than usual in the hour after smoking marijuana.
Today, manufacturers have found ways to add marijuana into vaping devices, edibles and wax that can contain nearly 100% pure THC, the chemical responsible for most of marijuana's psychological ...
Marijuana continues to be legalized across the U.S., with 22 states and Washington, D.C., allowing for the legal use and sale of the drug. With that, there seems to be a general consensus that ...
The psychoactive component of cannabis, tetrahydrocannabinol (THC) is not effective in treating emotion-regulation and anxiety-related symptoms. [20] Conversely, THC has been empirically related to an increase anxiety symptoms through impacts on neurological areas impacting serotonin, noradrenalin, GABA and glutamate.
Cannabis smoking (known colloquially as smoking weed or smoking pot) is the inhalation of smoke or vapor released by heating the flowers, leaves, or extracts of cannabis and releasing the main psychoactive chemical, Δ 9-tetrahydrocannabinol (THC), which is absorbed into the bloodstream via the lungs.
Despite pro-marijuana groups spending millions, voters in red and blue states rejected marijuana and psychedelic legalization ballot measures, indicating that drug legalization is unpopular and ...
As of 2025, no high-quality evidence has been found linking cannabis smoking to lung cancer, despite cannabis smoke having similar properties to tobacco smoke. Why this is the case remains unclear. Various studies have speculated that differences in patterns of use compared to tobacco could account for the difference, as well as the anti ...