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When you were 20, you could chug a double latte at 9 p.m., sleep through your alarm and wake up at noon. But now that you’re over 40, your relationship with sleep has gotten a lot more ...
Researchers examined the sleep patterns and durations of 526 people, with an average age of 40 at baseline, who were followed for 11 years. Participants wore a wrist monitor for three consecutive ...
Insufficient quality or quantity of night time sleep [5] Obstructive sleep apnea [6] Misalignments of the body's circadian pacemaker with the environment (e.g., jet lag, shift work, or other circadian rhythm sleep disorders) [7] Another underlying sleep disorder, such as narcolepsy, sleep apnea, [8] idiopathic hypersomnia, or restless legs syndrome
Subjectively, women report an increase in night-time awakening and an increase in total sleep time. [1] Pregnant women's main physiological complaints about the quality of sleep during the first trimester are related to nausea and vomiting, urinary frequency, backaches, and feeling uncomfortable and fatigued; as well as tender breasts, headache ...
The Centers for Disease Control and Prevention has noted that adults who sleep less than seven hours per day are more likely to have chronic health conditions, including heart attack, coronary heart disease, and stroke, compared to those with an adequate amount of sleep. [82] In a study that followed over 160,000 healthy, non-obese adults, the ...
A new study found that 300 to 599 minutes of moderate-intensity exercise could decrease your death risk by 26-31%: a certified personal trainer explains.
Today in most societies people sleep during the night, but in very hot climates they may sleep during the day. [153] During Ramadan, many Muslims sleep during the day rather than at night. [154] In some societies, people sleep with at least one other person (sometimes many) or with animals.
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 ...