Celebrity Trainers Reveal Their Top Fitness Secrets

Harley Pasternak is the favorite trainer of celebs like Megan Fox, Kim Kardashian and Eva Mendes. Author of Five Factor Fitness, this nutrition guru knows how to make small changes in your daily life that will help you to lose weight fast and feel better overall. 

His favorite tip? Play favorites. 

When you're strength training with dumbbells, work only one arm or leg at a time. If you do this then you're giving one side of your body a rest while you keep the other side working hard. Your heart will keep pumping the entire time (we love a higher heart rate) which means you're burning calories, but you'll give your body the time it needs to regenerate in between sets. 

One of his most crucial points is that you try and get out and walk as much as you can. Walk to go get lunch, maybe even park your car a little further from work than normal. Getting active and keeping yourself moving is actually more beneficial than you think.

[Photo via @harleypasternak]