Humans are special – our brains shrink as we age

The human brain is big, and it’s powerful, able to dream up innovative solutions to complex problems. Yet our brains don’t age well: As we grow older, they tend to shrink and become increasingly vulnerable to cognitive dysfunctions such as memory loss and dementia.

A new magnetic resonance imaging (MRI) study comparing humans and chimpanzees finds that chimp brains maintain their size as they age. Slowly losing our minds, it turns out, may be the evolutionary price we pay for having bigger brains and longer life spans. Learn more here.

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