This week on Dr. Greg Davis on Medicine we talk to a researcher who tirelessly works to understand the human sleep cycle. Lauren Whitehurst, Ph.D., assistant professor in the Department of Psychology in the UK College of Arts and Sciences and assistant director of the UNITE Research Priority Area, studies how sleep is affected by our genetics and living environments. Whitehurst’s current research is looking at precipitating factors that could be creating a sleep disparity in Black Americans. She is also the principal investigator on a five-year $2.4 million grant from the National Institute on Alcohol Abuse and Alcoholism (NIAAA) exploring how sex and sex hormones influence the effects of alcohol on sleep quality.