Learn the workout a celebrity trainer calls your body's "best friend."
Bye-bye, flat tush!
- Find out just how fit you are . . . — Real Simple
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- The 10 stages of going through a diet, in GIFs! — Women's Health
- The sexy workout Amy Adams can't get enough of — Shape
- A smartphone that doubles as a heart rate monitor — POPSUGAR Tech
- Healthy food swaps when all you want to do is eat your feelings — Fab Fit Fun
- A quick arm workout to help you get stronger — Fitness
- The 10 diets no one has any business trying — Cracked
Don't let recurring knee pain keep you from racking up the miles.
Check out that and more stories from across the POPSUGAR network!