Figure 1. Heart rate (HR) data plots over 3.5 days of three representative participants. Plots of raw HR data during 3.5 days of three representative participants are presented in panel (A) One middle-aged offspring of a long-lived family, one middle-aged partner, and one young individual. Panel (B) Presents plots of the aggregated cleaned HR data of the raw data presented in panel A together with the cosinor plots resulted from the cosinor analyses.