The University of Kansas conducted a study measuring the cortisol levels in saliva samples from its men's basketball players over the course of a season. Cortisol is a hormone released in response to stress that can impact athletic performance. The study found some players had lower cortisol levels, making them better able to perform under pressure. A previous University of Nebraska study also found football contributors had lower cortisol responses. The Kansas researchers hope to use this data to help coaches manage players' stress, fatigue, and injury risk through tailored training programs.