Explanation: A 2009 study found that redheads are twice as likely to avoid dentist visits as people with other hair colors, because they're more anxious about painful procedures. Why? Supposedly, carrot-tops can't stand discomfort.
Ready to overcome that wimpy reputation, ginger-haired MythBuster Adam Savage especially was hoping to bust the myth that redheads have a low pain tolerance. Along with Jamie Hyneman, he gathered two dozen redheaded men and women to see what they were made of.
The MythBusters subjected participants to a cold pressor test, a common pain-induction technique used by researchers that clocks how long people can keep their hands dunked in ice water. Making Adam proud, the redheads outperformed the non-redhead control group and endured the bone-chilling bath longer.
The jury is out, however, on whether the MythBusters could replicate those results at a dentist's office.