The euphoric effects of marijuana can cause relaxation and stimulation. When high on cannabis, individuals may experience a slight decrease depression. Research findings from as early as the 1970s show that both marijuana and THC reduce intraocular pressure, a key contributor to glaucoma. THC appears to increase our sensitivity to scents and flavors by using naturally occurring neural networks to convince the brain that it’s starving. Marijuana is fast becoming the best remedy for migraine relief. Some research shows that it may help ease migraine symptoms or possibly keep them from starting. When you have insomnia and have trouble falling asleep, you may rely on marijuana to help you feel more drowsy since it has a relaxing and even sedative-like effect. Parkinson’s disease is a progressive disorder of the nervous system, and eventually, it will likely affect how someone moves, speaks and writes.