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What Does Drop In Heart Rate Indicate?

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Posted on Thu, 5 Mar 2015
Question: Everynight around 9-10pm my heart rate drops about 10bpm. Is this bc of melatonin?
doctor
Answered by Dr. Prabhakar C Koregol (50 minutes later)
Brief Answer:
Yes it would be part of your circadian rhythm

Detailed Answer:
You are possibly right. Generally heart rate drop in the night by 10-20 but that usually occurs after 1-2hrs of sleeping. Even other time when you relax without being too much bothered about anything else also, heart rate can drop.
What's is your daytime heart rate and how much it drops to.? Please let me know. Do you have any symptoms during that?
Above answer was peer-reviewed by : Dr. Shanthi.E
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Follow up: Dr. Prabhakar C Koregol (2 hours later)
My daytime rate just relaxing watching tv is about 75. At night, about an hr or 2 becore I sleep even when doing same thing as day it drops about 10bpm
doctor
Answered by Dr. Prabhakar C Koregol (22 hours later)
Brief Answer:
Normal

Detailed Answer:
That is normal response and doesn't call for any concern
Note: For further queries related to coronary artery disease and prevention, click here.
Above answer was peer-reviewed by : Dr. Bhagyalaxmi Nalaparaju
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Answered by
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Dr. Prabhakar C Koregol

Cardiologist, Interventional

Practicing since :1998

Answered : 427 Questions

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What Does Drop In Heart Rate Indicate?

Brief Answer: Yes it would be part of your circadian rhythm Detailed Answer: You are possibly right. Generally heart rate drop in the night by 10-20 but that usually occurs after 1-2hrs of sleeping. Even other time when you relax without being too much bothered about anything else also, heart rate can drop. What's is your daytime heart rate and how much it drops to.? Please let me know. Do you have any symptoms during that?