ΩSleep apnea not a problem over 60!A new study, derived from novel sleep research conducted by University of California, San Diego researchers 14 years earlier, suggests that the secret to a long life may come with just enough sleep. Less than five hours a night is probably not enough; eight hours is probably too much.A team of scientists, headed by Daniel F. Kripke, MD, professor emeritus of psychiatry at UC San Diego School...