When it comes to exercise, there's more than a little truth to the old adage "no pain, no gain." But there's a difference between pain or soreness that's a sign that you're building muscle and pain ...
1don MSN
I’m a personal trainer — these are the 3 most common push-up mistakes I see (and how to fix them)
Learn how to improve push-ups with this personal trainer's advice based on common mistakes she sees in the gym.
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