Fight Alzheimer's by staying mentally sharp

New research out this week boosts the theory that when it comes to staying mentally sharp – you either use it or lose it.

A study of nearly a half million people in France found that people who delay retirement have a lower risk of developing Alzheimer's disease or other forms of dementia.

"There is increasing evidence that lifestyle factors may reduce the risk for developing Alzheimer's."

Keri Pollock is with the local chapter of the Alzheimer's Association. She says the French study corroborates other research that shows a link between lifestyle factors and dementia.

"There are no guarantees, but it definitely mirrors some other studies out there that show that staying mentally, physically and socially active over a lifetime have an important effect on our overall health."

The experts say the study results don’t mean everyone needs to keep punching the time clock. But, you should continue to do the things that are enjoyable to you.

"Volunteering, hiking, doing puzzles, visiting your loved ones, all of that has an impact."

The goal is to stay mentally, physically and socially active for as long as you can.