RecruitingClinical trialChildhood Cancer Survivors' Affective Response to ExerciseThe primary objective of this study is to assess the feasibility of administering the Personalized Single-Category Implicit Association Test (PSC-IAT) to young adult survivors of childhood cancer. Participants will perform a total of three trials of a cognitive task before and after their scheduled SJLIFE cardiovascular stress testing. Participants will then be asked to participate in a qualitative interview about the cognitive task tool and body sensations and emotions experienced during exercise.