Thanks to advances in cloning, a new technique for thinning hair has moved from testing on lab animals to people. At the Aderans Research Institute in Atlanta, they're cloning cells from areas on the head that resist balding.
During the procedure, hair-forming cells are taken from tissue on the head and put in a lab dish where they multiply by the thousands. After enough new cells form, they're injected into the patient's scalp.
So, unlike a hair transplant, the patient actually ends up with more hair than they started with.