African Genetic Ancestry is Associated with Sleep Depth in Older African Americans Halder I, Matthews KA, Buysse DJ, Strollo PJ, Causer V, Reis SE and Hall MH SLEEP, 38:1185-1193, 2015 A new study clearly establishes a partial genetic basis underlying racial differences in slow-wave sleep, suggesting that it may be possible to develop sleep-related therapies that target specific genetic variants. Using a panel of 1...