Потребность во сне

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Потребность во сне у разных лиц варьирует от 4-6 до 8-10 часов и более. Она устанавливается в раннем подростковом возрасте и далее на протяжении жизни мало меняется. Физиологические определители сна - возраст, суточная периодика дня и ночи и ее нарушения, геомагнитные влияния, физический и эмоциональный стресс, др.
Оптимальное качества сна достигается, когда его время совпадает с эндогенными биологическими часами. Есть даже точка зрения (T. Kantermann), что полноценной адаптации организма человека к переходу на летнее время не происходит.

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