New study links daily movement to sharper long-term brain health

A large, multi-year study has found that people who stay physically active throughout the day maintain sharper cognitive function later in life.

The research tracked thousands of participants and controlled for diet, sleep, and genetics.

Crucially, the benefits appeared even among those who did light activity such as walking, not just intense exercise.

"The message is simple: move more, sit less," said one of the study's authors.