Recent Blog Articles
Masks save lives: Here’s what you need to know
Stretching studios: Do you need what they offer?
Why are women more likely to develop Alzheimer’s disease?
Seeing red? 4 steps to try before responding
Tics and TikTok: Can social media trigger illness?
Pandemic challenges may affect babies — possibly in long-lasting ways
4 immune-boosting strategies that count right now
If you have knee pain, telehealth may help
How to address opposition in young children
New study investigates treatment-associated regrets in prostate cancer
Exercise & Fitness
How does sleep affect your heart rate?
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Point to be noted: Heart rate during sleep and waking also differs according to the age of the normal person, other factors already discussed in this blog.
I am a retired cardiolgist and have had a resting heart rate that varies between 34 and 46 since I first started to record it when I was a fellow in 1974. I am an avid exerciser and ran 3 marathons in the past. I have never had any apparent ill effects, although had one episode of micturation syncope in 1974. At aged 78, I am able to attain a heart rate of 155 at peak exercise (12-13 mets) suggesting a normal chronotropic response to exercise. Bradycardia without symptoms can be benign and may be related to increased parasympathetic tone especially in well trained fit individuals.
Commenting has been closed for this post.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!