Studies of napping have shown improvement in cognitive function, creative thinking, and memory performance. As I mentioned in my post about the body clock and your body’s best time for everything, we’re naturally designed to have two sleeps per day:
The idea that we should sleep in eight-hour chunks is relatively recent. The world’s population sleeps in various and surprising ways. Millions of Chinese workers continue to put their heads on their desks for a nap of an hour or so after lunch, for example, and daytime napping is common from India to Spain.
Naps can even have a physical benefit. In one study of 23,681 Greek men over six years, the participants who napped three times a week had a 37% lower risk of dying from heart disease. Not to mention a host of other positive outcomes that might occur from regular napping:
Sleep experts have found that daytime naps can improve many things: increase alertness, boost creativity, reduce stress, improve perception, stamina, motor skills, and accuracy, enhance your sex life, aid in weight loss, reduce the risk of heart attack, brighten your mood and boost memory.
The Middle East and North Africa suffer the world’s highest depression rates, according to a new study by researchers at Australia’s University of Queensland -- and it’s costing people in the region years off their lives.
Snakes and their relationships with humans and other primates have attracted broad attention from multiple fields of study, but not, surprisingly, from neuroscience, despite the involvement of the visual system and strong behavioral and physiological evidence that humans and other primates can detect snakes faster than innocuous objects. Here, we report the existence of neurons in the primate medial and dorsolateral pulvinar that respond selectively to visual images of snakes. Compared with three other categories of stimuli (monkey faces, monkey hands, and geometrical shapes), snakes elicited the strongest, fastest responses, and the responses were not reduced by low spatial filtering. These findings integrate neuroscience with evolutionary biology, anthropology, psychology, herpetology, and primatology by identifying a neurobiological basis for primates’ heightened visual sensitivity to snakes, and adding a crucial component to the growing evolutionary perspective that snakes have long shaped our primate lineage.
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