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If you have trouble falling asleep, wake up throughout the night or wake up feeling tired despite sleeping enough hours, these could be signs of an underlying problem or sleep disorder, the ...
Early stages of sleep sees our endocrine rebalance itself, so if you're waking up here, something is being blocked. If you have trouble sleeping early on in the night, it may be that you're having ...
Night time anxiety can cause you to wake up at an unusually early hour (say, 3 a.m.), feel like you haven’t had enough sleep, and then feel pressure to go back to sleep, explains Virginia Runko ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 12 January 2025. Short period of sleep during typical waking hours For other uses, see Nap (disambiguation). A man napping in a hammock, on a patio in Costa Rica A nap is a short period of sleep, typically taken during daytime hours as an adjunct to the usual nocturnal sleep period. Naps are most often ...
Stretching often occurs instinctively after waking from sleep, after long periods of inactivity, or after exiting confined spaces and areas. In addition to vertebrates (e.g. mammals and birds), spiders have also been found to exhibit stretching. [4] [5]
Sleep plays a vital role in regulating metabolism and appetite. When sleep deprived, the metabolic system will be out of balance, which will ultimately affect the dietary choices people make. Teens who are sleep deprived crave more carbohydrates. Sleep deprivation is a risk factor for obesity among young adults. [7] [medical citation needed]
Chronic sleep deprivation paired with regular physical activity can lead to fatigue, stress, and mood swings—undermining the benefits of both sleep and exercise. So, while exercise can help ...
After sustained periods of sleep, both the speed and synchronicity of the neurons firing are shown to decrease. [5] Another effect of wakefulness is the reduction of glycogen held in the astrocytes, which supply energy to the neurons. Studies have shown that one of sleep's underlying functions is to replenish this glycogen energy source. [6]