They're our saving grace, rescuing us from bad hair days and making our lives a little easier. Here's what you need to know about your hair band habits to avoid breakages and damage to your locks. What to avoid. Hairbands with a metal joint are notorious for causing breakage to your hair. These fasteners actually catch and snag the hair causing breakage. This also goes for any silver/Gold thread running through the band for decoration. Rubber bands are a little trendy at the