Amongst Guiness Record holders like the man with the 32-foot fingernails and the woman with more than 4,000 piercings, the men and women pulling off extreme feats of endurance, stamina, and strength deserve some props too. We searched for some of the most astonishing fitness achievements—some amazing, some weird, and some just pretty silly. And you’ve probably never heard of any of them. (Note: All records are recognized by Guinness World Records.) To read more click here!