Cardiac Autonomic Dysfunction in Childhood Cancer Survivors

Potential participants will be recruited by email and phone. Survivors who wish to participate will complete an online consent form and then a series of short questionnaires to determine study eligibility. This data collection will take place in DatStat Connect, which is the online consenting and data collection tool utilized for the CCSS. Consented/enrolled SJLIFE participants will receive a link via email to complete surveys related to autonomic functioning and current medical concerns and asked to schedule delivery of a WHOOP® strap prior kit prior to scheduling a device setup session with a team member. The kit will include the WHOOP® strap, brief instructions for setup, and prepaid return mailing materials. The WHOOP® strap will be shipped to the participant and each participant will complete a training session and app installation, if needed, and instructions regarding during of wear (two weeks)