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A Good Night’s Sleep Really Does ‘Clear the Mind’

A Good Night’s Sleep Really Does ‘Clear the Mind’

Why do we sleep?  It is a question that has long puzzled scientists and philosophers alike.  While the ancient Greeks saw sleep as a doorway to the divine, scientists and biologists see it as an invitation to be devoured by nocturnal predators.  A new study – appearing today in the journal Science – may provide the answer: when we sleep our brain ‘takes out the trash.’

Copper Key Contributor to Alzheimer’s

Copper Key Contributor to Alzheimer’s

Copper is ubiquitous in the food supply and drinking water.  In the right amounts, it helps the body perform many important functions.  However, a new study points to the metal’s darker side: too much copper can accumulate in the brain and contribute to the buildup of toxic proteins that cause Alzheimer’s disease.

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