Coffee is a complex mixture of chemical components of the coffee bean. Some of these components are partially destroyed by the roasting process; however, many of these components are not. Caffeine is one of the components that is not affected by the roasting process. With the addition of hot water, the caffeine is extracted from the coffee bean.
Caffeine was discovered in coffee in 1820. Caffeine is an alkaloid that acts as a mild stimulant. It increases the blood pressure, stimulates the central nervous system and the action of the heart and lungs, and promotes urine formation. It also acts as a diuretic and delays fatigue. Caffeine does have some positive side effects. It has been found to help treat migraines since it helps constrict the dilated blood vessels, therefore reducing the pain. It also has been documented to increase the potency of aspirin and to slightly relieve the affects of asthma attacks. It has been suggested that caffeine has been linked to possible cancers and birth defects. However, this has not been confirmed and there are no bans or warnings that have been issued by the US Food and Drug Administration (US FDA).
The amount of caffeine found...