It also causes serious physiological changes that are deleterious to health. Teenagers have to be told that sleeping is as important as eating and breathing. Tossing and turning acts as a signal to the body that you're ready to get up. Do not go to bed until you're really sleepy. Warm milk with one or two teaspoons of honey.
Warm milk contains tryptophan.
Tryptophan is an essential amino acid. The advantage of a tryptophan-induced sleep is that you awaken at the normal time everyday and do not feel sleepy or drugged. Have a regular sleeping habits. Go to bed at the same time each night. Get up at the same time each day.