Naomi Osaka will return to the court at the Tokyo Olympics after canceling major tennis matches. Many were surprised when she cited concerns about her mental health, and now Olympians could face similar stresses. The one-year postponement has made it hard for athletes to schedule training, and they may have anxieties about competing during a global health crisis. Professor Parham explains the pressures of elite athletes, and the mental challenges they face at the Tokyo Olympic and Paralympic Games.