Researchers are examining whether laser beams stimulate blood flow to the scalp of chemotherapy patients. Developers say the extra blood flow increases cell metabolism and enables damaged blood vessels and cells in the hair follicles to regenerate. The healthier hair follicle should then be able to support new hair growth.

Often called one of the best college basketball players of all time, Wayman Tisdale played in the National Basketball Association (NBA) for 12 years.  In February 2007, Tisdale learned of a cancerous cyst below his knee after falling down steps and breaking his right leg. After 2 years of cancer treatment, he died May 15, 2009