Harley Pasternak's 6 Star-Tested Tips for Looking Your Best at Any Age

The celeb trainer and PEOPLE.com blogger reveals how Sandra Bullock, Halle Berry and more stay forever gorgeous

2. Graze, Don't Gorge

Who gets it right: Halle Berry, 46
Halle Berry is ageless! As she nears 50, Berry manages to look younger and younger. She also happens to be diabetic, so she knows how important it is to eat many small meals and snacks throughout the day. By grazing as the day goes on, you have fewer energy swings and keep your appetite in check.