Dan Riga*
Background: Both mental and physical health are essential for overall health. However, it is often difficult to monitor emotional, psychological, and social well-being remotely. The goal of this scoping review is to look into studies that use PPG-based wearable sensors to detect and monitor mental health and stress.
Methods: The PRISMA framework was used to conduct a literature review for this scoping review. Five medical databases yielded a total of 290 studies. Studies were considered eligible if non-invasive PPG-based wearables were worn on the wrist or ear to measure heart vital signs.