1. Introduction Waking up with a racing heart and shortness of breath typically indicates a sudden activation of the sympathetic nervous system during sleep, often triggered by obstructive sleep apnea, nocturnal panic attacks, or specific cardiac arrhythmias. When the body encounters a physiological stressor while unconscious, such as a drop in blood oxygen or a … Read more
1. Introduction Heart palpitations when trying to fall asleep are primarily caused by the natural shift in autonomic nervous system dominance, heightened bodily awareness in a quiet environment, and the physiological effects of daily stress or caffeine accumulation. As the body transitions from an active sympathetic state to a resting parasympathetic state, minor electrical variations … Read more
1. Introduction: Calming Nocturnal Tachycardia To stop your heart from racing at night, engage in slow diaphragmatic breathing to immediately activate the vagus nerve and transition the autonomic nervous system into a relaxed parasympathetic state. Cease all consumption of caffeine and alcohol several hours before bedtime, and ensure your bedroom is a cool, dark environment … Read more