Andrew W. McHill is a sleep physiologist and Assistant Professor at Oregon Health & Science University, where his research focuses on how sleep timing, circadian rhythms, and modern lifestyle factors influence metabolic health, cardiovascular risk, and long-term wellbeing. Trained in human physiology and circadian biology, he studies how behaviors such as late-night light exposure, shift work, and insufficient sleep disrupt the body’s internal clock and affect disease risk. McHill is also engaged in translating sleep science into practical public health insights, with an emphasis on how improving sleep habits can enhance both daily functioning and longevity.