Caffeine in small doses acts as a stimulant and keeps you awake, so a cup once a day may be Ok but excessive coffee drinking gives side effects like tremors, fast pulse rate, irritability, acidity and stomach pain. It can also cause addiction. So better, take care about the quantity.
Editor answered 11 years agoOur greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time. - Thomas A. Edison