Pages tagged physiology:

What Makes Us Happy? - The Atlantic (June 2009)

study of success and happiness or the lack of same
Sleep May Prepare You for Tomorrow by Dissolving Today’s Neural Connections | 80beats | Discover Magazine
Sleep may be a way to sweep out the brain and get it ready for a new day of building connections between neurons, according to two new studies of fruit flies. The studies support the controversial theory that sleep weakens or entirely dissolves some synapses, the connections between brain cells. “We assume that if this is happening, it is a major function, if not the most important function, of sleep” [Science News], says Chiara Cirelli, a coauthor of the first study, published in Science.