Polycystic ovary syndrome (PCOS) is a hormonal disorder that can affect a woman’s metabolism, fertility, and overall health. Women with PCOS are at an increased risk of developing cardiometabolic diseases such as heart disease, stroke, and type 2 diabetes. High-intensity interval training (HIIT) is a type of exercise that involves alternating short bursts of intense activity with brief periods of rest or low-intensity exercise. HIIT has been shown to be highly effective at improving cardiometabolic health, even in people with PCOS.