2 weeks ago
30
ARTICLE AD BOX
Deep sleep does more than help you feel rested. It actively rebuilds your body, strengthening muscles, supporting bone growth, and helping burn fat. For teenagers, it is also essential for reaching full height potential.
At the center of all this is growth hormone, which surges during sleep. But scientists have long puzzled over why poor sleep, especially the early deep stage known as non-REM sleep, leads to lower levels of this critical hormone.
English (US) ·