Stress and the City. A new international study shows that two distinct brain regions that regulate emotion and stress are affected by city living. Being born and raised in a major urban area is associated with greater lifetime risk for anxiety and mood disorders. (Nature, 2011; 474(7352):498) Read more.
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Sleep deprivation can be either an acute (occasional) or a chronic lack of sleep. Partial sleep deprivation is the term used when an individual gets some, but not all, of the sleep necessary for waking alertness during the day. Partial sleep deprivation can be caused by medical conditions, sleep disorders, as well as lifestyle (e.g., shiftwork, jet lag or working overtime). Total sleep deprivation is defined as a complete lack of sleep lasting for 16 hours or more in a healthy adult.