People use weed to get off of opiates, alcohol, tobacco, heroin, cocaine and other powerful drugs. Thus, it is gaining traction as an exit drug, instead of a gateway drug. Seniors also secretly use it to improve their cognition. Not a brain dead loser? No, not according to the scientific data. The opposite is true as researchers find that the plant allows neurogenesis in the brain, the growth of new neural pathways, even when the brain had been damaged by age or trauma. - Huffington Post