![]() Stage three is the deepest and most restorative stage of sleep (it’s also called “slow-wave sleep”), in which breathing further slows, muscles relax, and tissue growth and repair occurs. Deeper sleep begins in stage two, as your breathing and heart rate become slower and your body temperature drops. Stage one, or the phase between being awake and asleep, is considered light sleep. NREM sleep consists of three stages, the first being the lightest stage, during which you’re most likely to be woken up, according to the National Institutes of Health. Everyone Should Cycle Through Light and Deep Sleep Each Nightĭuring sleep, you alternate between cycles of REM (rapid eye movement) and NREM (non–rapid eye movement) that repeat about every 90 minutes. In addition, some studies suggest that differences in brain wave activity during sleep may also make someone a light or heavy sleeper.īut whichever category you’re in, one thing is certain: The quantity and quality of the sleep you get both play an important role in your health. Genetics, lifestyle choices, and undiagnosed sleep disorders may all play a role. Just why, though, remains a bit of a mystery.Īlthough many people are self-proclaimed light sleepers or heavy sleepers, researchers have found that little is actually known about why people react differently to noises and other stimuli during sleep. For others, the wailing siren of a passing fire truck doesn’t disturb their slumber. For some people, the slightest noise awakens them at night.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |