The objective of the current study is to assess the impact of a five-week digital heart rate variability biofeedback (HRV-B) intervention or music listening on the well-being of first episode psychosis patients. Heart rate variability (HRV) is a measure of how an individual's heart rate can adapt to a changing environment and mental and physiological challenges. It has been well established that HRV can be regulated through actions such as slow breathing and meditation. HRV Biofeedback (HRV-B) involves breathing at a specific frequency, usually around 6 breaths per minute, which has been shown to maximize HRV. Research has shown that HRV-B interventions improved mental health symptoms in various populations including individuals at clinical high risk for psychosis.