Written By
Brandon R. Peters, MD
July 13, 2018
Why Does My Heart Rate Spike When I'm Asleep?
Your body undergoes a number of important recuperative processes during sleep, from cell renewal to muscle repair to restorative brain activity. Changes in breathing, oxygen levels, and heart rate occur as well. These actions are essential to your long-term health. While having a slight fluctuation in heart rate during sleep is normal, it is important to understand the causes of more noticeable spikes in your heart’s number of beats per minute.