Marijuana is an age-old drug made from parts of the Cannabis plant. It contains the mind-altering chemical tetrahydrocannabinol, or THC. Several countries, and a number of U.S. states, have legalized the drug for medical or recreational purposes. Here's the latest news on marijuana, from how it affects the brain and body, to its potential medical benefits or harms, to possible impacts of legalization.
Researchers found that roundworms gobble down high-calorie foods when exposed to a compound that acts on the same brain receptor as THC.
Though there are many urban legends out there, the origins of 4/20 as an international holiday to smoke marijuana are hazy.
The rate of children being hospitalized for cannabis poisoning increased in Canadian provinces that legalized edibles.
Cannabis is one of the most widely used drugs in the world. While there are only a few countries where cannabis is legal for recreational use, many more countries have legalized the use of cannabis for medical reasons.
Cannabis has long been called "skunky." Turns out, stinky sulfurous compounds are to blame.
"These findings are promising, but randomized clinical trials are needed to confirm the results," her doctors said.
The early data suggest a link, but cannot say whether cannabis causes the rebound headaches.
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