Sleep is a period during which a person rests body and mind. Sleep restores energy to the body, particularly to the brain and nervous system. The body clock that regulates sleep is called the circadian clock. The circadian clock influences body temperature, sleep and wakefulness and some hormonal changes. Even two days without sleep can result in hallucinations.
Stress can cause physical problems such as depression or headaches.
Stress is a very natural and important part of life. Stress is not always bad. It can help us grow, attain difficult goals and perform our best, according to Dr. Koop. Treatment may include light therapy or medication - or a combination of the two. 4. Questions or Comments should be sent to the Webmaster .