Marijuana is the most commonly use illicit drug in the United States. You may have heard it called pot, weed, grass, ganja or skunk, but marijuana by any other name is still a drug that affects the brain. It makes others more aware of their physical sensations, and it has still more effects on other people. All these different changes are carry through by chemicals that affect the brain. More than 400 chemicals are in the …showed first 75 words of 870 total…

…showed last 75 words of 870 total…