10 Nervous Habits That Hurt Your Health

Twirling your hair or biting your nails seem harmless, but tics can wreak havoc on your skin, teeth, and more.
bad-nervous-habit

Credit: Getty Images

prev 1 of 12 next

Nix these tics

by Linda Melone

Nervous habits are often more annoying to the people around you than to yourself, but some types of fidgeting and fussing can do real harm. Here, experts reveal the reasons why nail-biting, hair-twirling, and other seemingly harmless habits can be hazardous to your health.

Next: You bite your nails

» View All

Get the latest health, fitness, anti-aging, and nutrition news, plus special offers, insights and updates from Health.com!