Brain Health

A healthy brain at all ages

The brain is an organ in your body just like your heart and lungs. There are things you can do to change the health of your brain across your lifetime, for better or for worse. This page includes information about the human brain, what can harm our brain health, and how to keep our brains healthy throughout our lives.

Brain development (ages 0–25)

Six smiling kids

Many factors influence brain development.

Adult brain health (ages 25–64)

Adults giving piggyback rides to other three adults outside, all laughing.

Your brain benefits from good health and stimulation.

Mature brain health (ages 65+)

Five retired adults laughing outside.

Continue to engage in enjoyable social and mental activities.

Glossary

 
Last revised March 26, 2026