The younger you start investing for your future, the better. That’s not just some empty, general statement—math bears it out. The longer you have to invest, the more compounding works to your ...

How old do you feel? Experts explain how subjective age works, and why it matters. (Getty Images) Your heart tells you you're 27, but your birth certificate says 42. For many of us, there’s a big ...

Clocks coming out of a large clock as a 3D illustration. We age along two clocks: a chronological clock and a biological clock. The former is just a measure of how many birthdays you have celebrated — ...

You get older every day. But how old are your cells and organs, really? Understanding that could help us live longer, healthier lives, many longevity experts believe. Dr. Douglas Vaughan is among them ...

Age is just a number—and one you may be able to change. At least that’s the pitch behind Tally Health, a new startup that’s among a crop of companies selling tests that offer to tell consumers their ...

My 70-year-old father tells me he’s routinely startled simply by seeing his face in the mirror. “Who’s that old guy?” he thinks. Science shows he’s far from alone in this feeling. I’m 43, so this ...