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Sleep deprivation, also known as sleep insufficiency [2] or sleeplessness, is the condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health. It can be either chronic or acute and may vary widely in severity.
Sleep may be an actively social time, depending on the sleep groupings, with no constraints on noise or activity. [140] People sleep in a variety of locations. Some sleep directly on the ground; others on a skin or blanket; others sleep on platforms or beds. Some sleep with blankets, some with pillows, some with simple headrests, some with no ...
In 2019 Walker gave a TED talk entitled "Sleep is your superpower". [28] [29] [30] Markus Loecher, Professor for Mathematics and Statistics at Berlin School of Economics and Law criticised its claims and the veracity of its facts. [31] Walker has a short-form podcast, The Matt Walker Podcast, focusing on sleep, the brain, and the body. [32] [3]
Getting enough sleep is an important part of a person’s overall health. Poor sleep is a risk factor for cognitive issues such as memory loss. Researchers from Charité – Universitätsmedizin ...
Recent research from the RAND Corporation estimates that the lack of sleep among workers costs the U.S. economy up to $411 billion per year (2.28% of GDP), due to individuals' lower productivity ...
Polyphasic sleep is the term used to describe any sleep pattern that includes three or more periods of shuteye in a 24-hour period instead of the more traditional large snooze at night.
One of the important questions in sleep research is clearly defining the sleep state. This problem arises because sleep was traditionally defined as a state of consciousness and not as a physiological state, [14] [15] thus there was no clear definition of what minimum set of events constitute sleep and distinguish it from other states of partial or no consciousness.
Why We Sleep: The New Science of Sleep and Dreams (or simply known as Why We Sleep) is a 2017 popular science book about sleep written by Matthew Walker, an English scientist and the director of the Center for Human Sleep Science at the University of California, Berkeley, who specializes in neuroscience and psychology.