Sleep Enough

Most people dream. But, do we really need to? Do dreams have a particular purpose? According to Professor Ernest Hartmann, the Director of the Sleep Disorders Center at Newton Newton Wellesley Hospital in Boston, Mass. and the Professor of psychiatry from the Tufts University School of Medicine, the honest answer is: we do not know. [...]

Caffeine is a stimulant of the central nervous system. You could say a large number of people are addicted to it. Many rely on a dose of caffeine to wake them up in the morning, and to keep them going throughout the day. But, what happens when we take too much caffeine? We are doing [...]