Caffeine is an addictive drug, affecting 90% of all Americans, which alters the brain's natural state, and stimulates it in a manner similar to the amphetamines cocaine and heroin.
it has control over your brain.
coffee has the ability to close blood vessels in the brain, so the brain and body cannot sleep, to cause the release of adrenaline into the body, so the body remains active and alert, and to manipulate dopamine production in the brain, so the person experiences a temporary "high."
Those who consume 300 mg. or more per day, suffer from withdrawal symptoms if they abruptly cut off their caffeine supply. Most users will suffer from symptoms of fatigue and depression, irritability, tremors, jumpiness, deprivation of deep sleep, and vascular headaches, as the blood vessels in the brain dilate. Caffeine, however, can be medically useful as a cardiac stimulant, and also as a mild diuretic used to flush the system.
Tea vs. Coffee
(one tea bag) 30
green tea (one tea bag) 20
white tea (one tea bag) 15
decaf tea (one tea bag) 2