The Brain with David Eagleman

Episode 2 | Nuns and the Aging Brain

Clip: Episode 2 | 3m 37s

A study of nuns’ brains produces an unexpected revelation. A third of the brains tested at autopsy showed signs of Alzheimer’s but cognitive tests had revealed that the brain owners had shown no symptoms of this terrible disease. What was going on?

Aired: 10/21/15

Rating: TV-PG

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