Dog brain size relates to breed-specific behaviors, showing toy breeds with larger brain-to-body ratios than working breeds.

This will be the third service dog the Denver Broncos Foundation will have sponsored and placed with a veteran.

Brain-training games remain unproven, but research shows what sorts of activities do benefit cognitive functioning.

Some 2.3 million of U.S. adults over 65—more than 4%—have a diagnosis of dementia. But even without a diagnosis, a certain ...

Brain-training games sell themselves as a way to maintain cognitive function, but the evidence isn't there yet. Eva-Katalin/E+ via Getty Images Some 2.3 million of U.S. adults over 65 – more ...

In addition to these lifestyle changes, many people are turning to brain-training games, which claim to optimize your brain’s efficiency and capacity at any age. The makers of brain-training ...