In the first stage, low-frequency, low-amplitude theta waves characterize brain activity. In humans, sleep occurs in cyclical patterns in each cycle of 1 1-2 to 2 hr, the sleeper moves through four stages of sleep, from Stage 1 to Stage 4, and back again to Stage 1. Sleep also aids in the strengthening of memories, and researchers have discovered that an increased circulation of fluids in the brain during sleep removes waste products from the brain. However, sleep is also a time of repair and growth, and some tissues, e.g., epithelium, proliferate more rapidly during sleep. During sleep, which is in part a period of rest and relaxation, most physiological functions such as body temperature, blood pressure, and rate of breathing and heartbeat decrease. Sitemap Page was generated in 0.Sleep, resting state in which an individual becomes relatively quiescent and relatively unaware of the environment.
#Let sleeping dogs lie origin code#
#Let sleeping dogs lie origin full#
One theory is thatfood that had rotted and was not fit for human consumption wasthrown to the dogs.Īdditionally, is for the birds idiom? slang Worthless, stupid, or completely undesirable.Driving is for the birds when you live in a bigcity-unless you like sitting in traffic! I miss my usualshift-night work is for the birds. The origin of theterm going to the dogs is in question. Going to the dogsdescribes something on the downgrade, something that is worse thanit used to be, something that is deteriorating. This idiom derives from the fact that attendinggreyhound races was once thought likely to expose a person to moraldanger and the risk of incurring great financialloss.īeside this, what does went to the dogs mean? Go to the dogs deteriorate shockingly, especially in behaviour ormorals.