Summary... Sleep....

During sleep the brain repairs itself and stores information. If we do not sleep, then we become tired, cannot remember and get ill. People sleep badly when they are not thinking about work or study. Late at night they make phone calls and check the emails. They also take drink which contain caffeine and eat dinner. To sleep well, we need a comfortable bed, a dark and quiet bedroom. We also do the same routine every night.... zzzZZZZzzzzZZZzzzz.....