11. Marijuana is renowned for inducing the munchies — but sleep?
As it turns out, the cannabinoids in pot mimic natural chemicals the brain manufactures, which play a role in sleep. In fact, studies show that a little weed improves deep sleep and reduces sleep apnea. However, marijuana also reduces the amount of REM sleep, which is associated with dreaming. Scientists are uncertain about the implications of this last finding. Experts note that low doses improve sleep best, while large amounts of THC can lead to increased feelings of drowsiness the next day.
Video: Marijuana and Sleep
