Читать книгу Sleep: The secret to sleeping well and waking refreshed - Prof. Idzikowski Chris - Страница 17

Working with the ebb and flow of the circadian rhythm are special sleep and wakefulness centres, which are located in a part of the brain called the hypothalamus. The sleep centre is in the same region of the brain that controls temperature (which may be why you sometimes can’t sleep if you are too hot) and the wakefulness centre is near the part that is associated with activity. In an ideal world, the sleep centre will shut down during the day, when the wakefulness centre opens, and open at night, when the wakefulness centre closes. Not surprisingly, good sleepers have strong day-time wakefulness and night-time sleep systems. But if these centres have been damaged (through, say, over-use of caffeine, alcohol or drugs, or due to illness or age), you are likely to have sleeping problems.