Timbaland & Magoo’s classic has inspired social media users to do the “Breathe In, Breathe Out” Push-Up Challenge. Some users are taking things to the extreme.
Fitgurú on MSN
How many push-ups should you be able to do at your age?
Fitness experts reveal the average number of push-ups men and women should be able to perform — and why this classic exercise is one of the best indicators of overall strength.
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