7 minute abs!
May 9, 2013 2:04 PM Subscribe
For all of you time crunched people: you can get fit doing these scientifically studied exercises (NYT). All you need are yourself, a floor, a chair, and time to do a 7 minute set 2 to 3 times. Caveat: it's a painful 7 minutes, and some say that you should already be at a decent fitness level, and may need to warm-up beforehand. Here's the academic journal article.
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