A slight zap of electricity to the brain could make righties better at using their left hands, a new study shows.

Researchers from the Beth Israel Deaconess Medical Center and Harvard Medical School used a non-invasive electrical stimulation technique to see if it made 16 healthy, right-handed volunteers better at using their left hand.

While the test subjects didn't suddenly become ambidextrous, the dexterity of their left hand did increase slightly.
http://www.msnbc.msn.com/id/27439132/