HRV and Autonomic Nervous System

  • Higher HRV: Stronger vagal tone, more relaxed
  • Lower HRV: Chronic stress, fatigue, cardiovascular disease

24-hour HRV Monitoring Methods

  • Traditional Holter ECG monitoring
  • Wearable devices (Apple Watch, Polar heart rate band)

Health Intervention Strategies

  • Regular aerobic exercise (3-5 times per week, 30-45 minutes)
  • Breathing training (4-7-8 breathing method)
  • Meditation and mindfulness
  • Biofeedback training