Our feet are remarkably high maintenance in the best of times: We have to worry about bunions and blisters, corns and calluses. Heels start to hurt; tendons tear. But during the pandemic, experts have ...

"My heels are so soft I can’t stop touching my feet." ...

I’ve got my fair share of unconscious habits: running my hands through my hair, tapping my feet, pursing my lips when I’m concentrating—and, of course, cracking my knuckles. That last one is perhaps ...