Hi , not sure whether I should be asking here regarding my cardiovascular health , but I would definitely appreciate some insight before I do anything about it.

My resting heart rate is kind of low , around 40-50 bpm and generally hovers around 50-60 bpm when doing light tasks.
I monitor my heart rate and saturation levels with an oximeter + AW and so far I don't think my SPO2 levels is anything to be worried about.

But here's the thing , while sleeping , my heart rate is very low (<40 bpm). Every time I sleep I would get low heart rate notifications and the would happen in a span of 10 min at a time. Today alone on my afternoon 'nap' (or sleep ) this has happened twice with a cumulative time of 20 mins having a heart of 36-38 BPM . Having that low of a sleeping heart rate freaks me out lol.

Some info about myself , I'm in my 20s and moderately active with frequent workouts and exercises. But I'm always sleepy and tired most of the time and every time I wake up , regardless having a long nights rest or not , I'd wake up super groggy and have a hard time getting off the bed.

What say you ? Is this something I should be worried about or is it normal.

This post has been edited by CertifiedHomphobe: Apr 29 2021, 07:19 PM

i only got 40 50 when i was sleeping...if awake still 40 a bit low from my view

A strong heart can afford to beat slower but still achieve the same amount of pressure to deliver blood. Likely that you are an avid athlete or used to be. Use a proper blood pressure + heart rate reader. Wearable electronics aren't that accurate.

Otherwise ask a doctor if you are worried. Seriously.

i wont trust the device.

By resting when awake is usually when sitting down and lying on the bed (completely relaxed) so i guess thats why it hovers around 40-50

I did use a proper oximeter and BP monitor which yielded relatively the same results . I used to frequently do really intense and long cardios , still am but not at the rate I used to and focusing more on moving plates. Its just that its worrying me since I get more and more tired all the time but never has this affected my performance when it came to sports . I think you're right , I should probably go to a checkup . Maybe that my hormone and cortisol levels are off .

After waking up I'd feel dizzy and notice that my cognitive abilities are clouded for a solid hour or two . Just curious whether the low BPMs affected my oxygen levels to a significant extent when sleeping . I'll try to use an oximeter as soon as I wake up.

i also have similar situation as you

sometime my heart rate can go as low as 30+ for short period of time while sleeping. average is 45-50
but i also can have higher heart rate easily when doing exercise.

i have checked ECG overnight at hospital and doctor don't see any issue for now

he said is normal if i am sportsman but i was not that active in sports in younger days lol

Same here. It's called Bradycardia. If you undergo full medical checkup, you should be able to determine which type of bradycardia that you have and the doctor should be able to advise you if there is any cause for concern.

https://en.wikipedia.org/wiki/Bradycardia#:...elow%2050%20BPM.

If no symptoms (e.g. blackouts), then you're fine.

If got symptoms, then depending on severity, might need treatment like pacemaker, but this is very rare.

Lance Armstrong's resting heart rate is 32bpm.
So unless if you are Lance Armstrong's level of fitness.. you should probably get it checked.