>>8158480This is a medically proven truth. People with mental disorders often self medicate with tobacco to relieve their symptoms. Nicotine is a stimulant in the brain, and also works as a sedative to relieve stress in sufferers. The stimulant effects have also been proven do decrease the risk of Parkinson and possibly Alzheimer disease.
They use people who smoke more than 20 cigarettes a day when studying effects. Like alcohol, moderate tobacco use poses little threat to health. The problem is moderate use and addiction for most people.