A 28-year-old walked 17 miles a day for a week; Here’s what happened next

British YouTuber Jack Massey Welsh committed to walking 35,000 steps daily for a week, totaling 250,000 steps. This challenge led to surprising body changes, including reduced belly fat and increased leg muscle, but also caused severe pain, swollen ankles, and a black toenail. Although rewarding, Welsh advises against such extreme exercise due to joint strain.

A 28-year-old walked 17 miles a day for a week; Here’s what happened next
British YouTuber Jack Massey Welsh committed to walking 35,000 steps daily for a week, totaling 250,000 steps. This challenge led to surprising body changes, including reduced belly fat and increased leg muscle, but also caused severe pain, swollen ankles, and a black toenail. Although rewarding, Welsh advises against such extreme exercise due to joint strain.