Scientists think it’s a matter of when rather than if there will be an age-reversing elixir. The possibility that it will be ready during our lifetimes is what gives me the most hope. Because they appear to age more slowly, some of our beloved celebrities appear to be participating in clinical research for this youth potion. We are only as young as we feel, and these 10 celebs appear to have the secret to staying young.


Naomi Campbell

Zac Efron

Kaley Cuoco

Chrissy Teigen

Halle Berry

Kristin Davis

Olivia Wilde

Leonardo DiCaprio

Christina Aguilera

What do you believe keeps famous people young? What is the difference between your biological age and the age you actually feel? Please tell us in the comments.