‘It’s not necessarily a soothing behavior. But it brings a slight enjoyment despite the pain.’Photograph: Science History Images/Alamy We know it’s bad. Maybe parents or partners have scolded us for ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The typical pimple is caused by clogged oil glands or bacteria in ...

Few things are more tempting than picking at a new zit that’s just appeared. After all, it’s pretty gratifying to see the built-up gunk release from your pores—plus, they always seem to crop up at the ...