Olivia Wilde – Nail Biting

Actress Olivia Wilde has a long list of impressive acting credits like “House,” “Booksmart,” and “TRON: Legacy.” Sure, she leads a far more glamorous life than us but we may have something in common with her: nail biting, one of the most common bad habits around the world.

Needless to say, this is an unhygienic habit that should be corrected. According to WebMD, a lot of people start developing this at a young age and while many outgrow this, others don’t. While it doesn’t usually cause permanent issues, it could result in weird-looking nails and chipped teeth, and can even make you sick.