The number of people with cardiovascular diseases is increasing at an alarming rate, and such disorders are now the leading cause of death worldwide. Because these diseases tend to cluster with pathologies like type-two diabetes, they are sometimes given the umbrella term “cardiometabolic diseases”. The number of people experiencing sleep problems has increased in lockstep with the growing prevalence of cardiometabolic diseases, and in the latest episode of humanOS Radio Dan speaks with Professor Kristen Knutson about why this is unlikely to be a mere coincidence.