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10Mar

How a Good Night's Sleep Can Clean Your Brain

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How deep we sleep can affect our brain’s ability to efficiently wash away waste and toxic proteins, new research suggests.

Because sleep often becomes increasingly lighter and more disrupted as we get older, the study reinforces and potentially explains the links among aging, sleep deprivation, and heightened risk for Alzheimer’s disease.

03Feb

Science Shows Yoga May Protect Your Brain in Old Age

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Scientists in Brazil have imaged elderly female yoga practitioners’ brains and found they have greater cortical thickness in the left prefrontal cortex, in brain areas associated with cognitive functions like attention and memory. The results suggest that yoga could be a way to protect against cognitive decline in old age.

22Jan

Brain Scans Show Why People Get Aggressive After a Drink or Two

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Researchers have used magnetic resonance imaging (MRI) scans that measure blood flow in the brain to better understand why people often become aggressive and violent after drinking alcohol. After only two drinks, the researchers noted changes in the working of the prefrontal cortex of the brain, the part normally involved in tempering a person's levels of aggression.