Perceived Stress and Cardiac Autonomic Function Among Indian Medical Undergraduates: A Cross-Sectional Heart Rate Variability Study.
BACKGROUND Chronic stress is linked to impaired academic performance, emotional strain and autonomic dysregulation. Heart rate variability (HRV) is an objective, non-invasive marker of autonomic function. However, Indian undergraduate cohorts remain underrepresented in integrative studies combining perceived stress, HR...