If you want to be an 80-year-old who gets-it-on, you also better be one of those 80-year-olds who does water aerobics. Not because you'll pick up dates there. Although you might.

According to a new study, there's a direct connection between older people's sex lives and their exercise levels. The better cardio shape you're in, the better your blood flow . . . and that includes blood flow to your naughty parts.

And it's not just for older people, younger people who get in 150 minutes of moderate exercise a week are less likely to have sexual dysfunction.

Read more at CNN.