Exercise is a big part of staying in shape, but you'd be surprised how many people at the ages of 50 & up aren't.

FOX's Alex Hein has this week's "Housecall for Health":

This is Housecall for Health.

A new study from the CDC suggests about one in four Americans ages 50 and older don't regularly exercise, leaving them at a greater risk of heart disease, diabetes and cancer.

The research, featured in the CDC's morbidity and mortality weekly report, found that 31 million Americans ages 50 and older, or 28 percent, are not active beyond basic movements common in daily life.

The CDC analyzed 2014 survey data that examined inactivity differences among the age group by race, sex, geographical region and more. Survey recipients were from all 50 U.S. states and the district of Columbia.

They found about 30 percent of women were inactive compared to about 26 percent of men. Non Hispanic blacks were the least active followed by Hispanics, other groups and non-Hispanic whites. Inactivity appeared to slightly increase with age.

For more on this story, check FOXNewsHealth.com.

Housecall for Health, I'm Alex Hein, FOX News.

Follow Alex Hein on Twitter: @Ahlex3889