“Stress serves an important purpose in maintaining health, but prolonged or severe stress can be harmful, particularly to the central nervous system. Nature Neuroscience presents a special issue focused on how stress affects brain function, behavior, and the development of psychiatric diseases, via a series of reviews and perspectives written by leaders in the field.” ………..below is the first of several articles in this timely issue on stress and the brain.
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Sapolsky RM: Stress and the brain: individual variability and the inverted-U, Nature Neuroscience 18: 1344–1346 (2015); doi:10.1038/nn.4109.
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http://www.nature.com/neuro/journal/v18/n10/full/nn.4109.html