Search results
Results from the WOW.Com Content Network
The quality of sleep may be evaluated from an objective and a subjective point of view. Objective sleep quality refers to how difficult it is for a person to fall asleep and remain in a sleeping state, and how many times they wake up during a single night. Poor sleep quality disrupts the cycle of transition between the different stages of sleep ...
Light therapy can improve sleep quality, improve sleep efficiency, and extend sleep duration by helping to establish and consolidate regular sleep-wake cycles. Light therapy is a natural, simple, low-cost treatment that does not lead to residual effects or tolerance. Adverse reactions include headaches, eye fatigue, and even mania. [187]
Sleep hygiene studies use different sets of sleep hygiene recommendations, [15] and the evidence that improving sleep hygiene improves sleep quality is weak and inconclusive as of 2014. [2] Most research on sleep hygiene principles has been conducted in clinical settings, and there is a need for more research on non-clinical populations. [2]
Sleep efficiency (SE) is the ratio between the time a person spends asleep, and the total time dedicated to sleep (i.e. both sleeping and attempting to fall asleep or fall back asleep). It is given as a percentage. [1] SE of 80% or more is considered normal/healthy with most young healthy adults displaying SE above 90%.
The component scores consist of subjective sleep quality, sleep latency (i.e., how long it takes to fall asleep), sleep duration, habitual sleep efficiency (i.e., the percentage of time in bed that one is asleep), sleep disturbances, use of sleeping medication, and daytime dysfunction. Each item is weighted on a 0–3 interval scale.
High altitudes are also linked to worse sleep quality, although cities with high activity levels and good air quality may be able to offset that. How to make your environment better for sleep.
Poor sleep quality is defined as the individual not reaching stage 3 or delta sleep which has restorative properties. [28] Major depression leads to alterations in the function of the hypothalamic–pituitary–adrenal axis, causing excessive release of cortisol which can lead to poor sleep quality.
"More broadly, quality sleep can support brain health, relationship health and overall physical health, including reducing the risk of heart disease," the expert said. For more Health articles ...