PSYCHOLOGY OF EMOTIONS

Detailed explanation-1: -Caffeine is the most widely used psychoactive substance in the world. In North America, more than 80 per cent of adults regularly consume caffeine.

Detailed explanation-2: -The medical name, derived from its molecular structure, is 1, 3, 7-trimethylxanthine. The chemical is also known as caffeine, theine, mateine, guaranine, or methyltheobromine.

Detailed explanation-3: -Caffeine is the most widely used drug in the world. In the United States, more than 90% of adults use it regularly, and, among them, average consumption is more than 200 mg of caffeine per day2-more caffeine than is contained in two 6-ounce cups of coffee or five 12-ounce cans of soft drinks.