#Stress eats holes in your brain - StarTribune.com
▻http://www.startribune.com/stress-eats-holes-in-your-brain/142338285
Not all stress poses a problem; our bodies are designed to combat stress by releasing the hormone cortisol. That response grew out of stresses such as, say, being chased by a tiger.
“The general story is that we evolved to have stress systems that are useful when you need a fast response,” said Eagleman, director of the Laboratory for Perception and Action at the Baylor College of Medicine in Houston. “What we did not evolve for is chronic stress, that 21st-century stress that man and woman lives with.”