Dr. Olivia Walch is the CEO of Arcascope, a circadian rhythms software start-up, as well as an investigator in Neurology at the University of Michigan. Her company and research focus on using phones and wearables to track and steer circadian rhythms under real world conditions, with the ultimate aim of timing treatments in a personalized way to improve efficacy and minimize toxicity. Her work has been featured on CNN, the New York Times, and The Atlantic. She is also the co-editor of the textbook Political Geometry from Birkauser and author of an upcoming pop-sci book about sleep and circadian rhythms.