Don’t let the cute-sounding seal crawl exercise fool you. It’s insanely tough on your abs, arms, shoulders, hips and lower back and you only need to do it for a few minutes to torch muscles everywhere.
We don't wait around at Tom's Guide. Keen to get stuck into another fitness challenge, I put aside five minutes a day, every day, to seal crawl around my apartment and test what, if anything, would happen to my muscles.
