Medical Discovery News, April 26, 2008 Saturday's edition of Medical Discovery News, by UTMB Professors Norbert Herzog and David Niesel, focused on sleep apnea. Nearly 12 million Americans suffer from some form of sleep apnea, many without realizing it. Undiagnosed, it can lead to high blood pressure, cardiovascular disease, memory and weight problems, impotency and headaches. The condition Medical Discovery News airs at 10 a.m. on KUHF-FM in Houston. The program is aired by 48 radio stations.