Wake up with a fast pulse rate? Here are some potential causes and what you can do about them. | By Dr. Eric Berg | Facebook
![What could be the cause of this heart rate spike? I don't remember my heart racing like that this morning, I just remember waking up then going back to sleep : r/fitbit What could be the cause of this heart rate spike? I don't remember my heart racing like that this morning, I just remember waking up then going back to sleep : r/fitbit](https://preview.redd.it/ne4ltr90k6q51.jpg?auto=webp&s=9b0d58c9df17c57e5de0894c41c25f1b63589812)
What could be the cause of this heart rate spike? I don't remember my heart racing like that this morning, I just remember waking up then going back to sleep : r/fitbit
![BelievePerform on Twitter: "What to do if you wake up feeling anxious https://t.co/gDPKT5PTPW" / Twitter BelievePerform on Twitter: "What to do if you wake up feeling anxious https://t.co/gDPKT5PTPW" / Twitter](https://pbs.twimg.com/media/EU8oqljXkAgowsP.jpg)