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Sauna effect on heart rate
221–230 of 244 posts
Re: Sauna effect on heart rate
#222Earlier quoted context omitted.
From the article: "..promotes sweating and therefore the elimination of toxins,.." That false statement really makes me unsure about the quality of the article. And I'm saying this as someone who uses sauna daily, when possible (I have one at home, and I grew up with saunas). "De-toxification" by sweating is a myth. Sweat glands are very simple organs (think salt on one side, which results in pressure, i.e. osmosis)…
> You'll be much better off peeing. Actually, the rate of blood filtration by kidney glomerulae is pretty constant and independent of the amount of urine in your bladder. Except if you overflow to the point of drowning your kidney of course.
Yes.. my point was only that to get rid of more than water you're better peeing than sweating. In any case, the liver is the only toxin-handling organ in the body (and a complex one).
Re: Sauna effect on heart rate
#223Earlier quoted context omitted.
The first study shows a 0.37 hazard ratio for frequent sauna use. That’s better than a lot of the HRs reported for physical activity. It’s even better than not smoking. It just doesn’t really fit. Also, the fact that there are practically no sauna related studies outside of Nordic populations is suspicious too. I bet that with those hazards ratios a lot of people have tried to study the effects more, it’s suspicious…
There's more research for you to explore if you're interested, but you sound more closed than curious if I'm honest. Maybe looking more into it will change your mind, maybe not!
I explored quite a bit because I was curious to see how it was possible that sauna had these great effects and why no one used it outside of Finland. But to this point I haven’t seen anything that really supports the idea that sauna is such a massive health protector as claimed. It’s probably beneficial, yes, but the real benefits are probably far lower than claimed.
Re: Sauna effect on heart rate
#224Re: Sauna effect on heart rate
#225Author here. Methodology upfront because I'd ask the same things: Data: daily records from wearable users who logged sauna sessions via connected apps. Within-person design — each user is their own control, comparing their own sauna-day nights against their own non-sauna-day nights. No cross-user comparisons. Stats: paired t-tests, FDR-corrected p 0.2 threshold for "meaningful effect." Anything below d=0.2 we don't r…
From the article: "..promotes sweating and therefore the elimination of toxins,.." That false statement really makes me unsure about the quality of the article. And I'm saying this as someone who uses sauna daily, when possible (I have one at home, and I grew up with saunas). "De-toxification" by sweating is a myth. Sweat glands are very simple organs (think salt on one side, which results in pressure, i.e. osmosis)…
Actually, this is why one shouldn't believe HN comments about medicine. The quality is this low.
This is simply laughable and very easily checked out. Here is one random study:
https://link.springer.com/article/10.1007/s00244-010-9611-5
> Many toxic elements appeared to be preferentially excreted through sweat
Here is another quick one
https://onlinelibrary.wiley.com/doi/full/10.1155/2012/184745
> Sweating deserves consideration for toxic element detoxification.
Its even observable directly - just go next to the heavy smoker during exercise.
While it might be less than dedicated organs, the skin is the largest organ by far.
Ofc, the topic is debated like every single thing in medicine, but calling it a myth is nonsence.
Re: Sauna effect on heart rate
#226Can anyone suggest why after covid I can't do Finnish sauna anymore? Prior to that I used to do 1-2x a week a sequence of 5x(10 minutes in sauna + 5 minutes cold water immersion + 10 minutes rest) which was absolutely great for both stress reduction and blood flow. Now if I do 5 minutes in sauna I feel like my skin was burning and I am about to die, and I need to recover for 1 hour from that to be able to just walk a…
Is the stove radiating too much heat? You want it to heat the air, not fry your skin! I once got a stove glowing hot because I had failed to get a high enough temperature going on the day before. It was the first time I tried a wood fired sauna myself. As long as the stove was glowing hot, I just couldn't enjoy the sauna.
Re: Sauna effect on heart rate
#227Anecdotal, of course, but the biggest change I ever made in my life was right before bed: take a screaming hot shower with dim lighting. I'd say 95% of the time, I get in bed and just pass out and have no real memory of time passing before falling asleep.
One trick I've heard is doing squats just before getting into bed. Just body weight.
It increases blood flow in your legs, which lowers your blood pressure -> lights out faster.
Re: Sauna effect on heart rate
#228Correct me if I'm wrong, but I thought HRV (Heart Rate Variability) is a bigger positive correlation for health than low heart rate?
Re: Sauna effect on heart rate
#229Earlier quoted context omitted.
Just because your heart rate is lower does it mean you’re any healthier however. This is just ridiculous measurement it means nothing. The sauna might be acting like any other drug. There are a lot of drugs that will lower nighttime heart rate. Does that mean those drugs are healthier for you?
If your resting heart rate is lower without any drugs, it indicates that your heart can cause sufficient oxygen to be delivered to your organs with less effort than if it were higher. That can be caused by a variety of things (including stroke volume, capillary dilation and general obstruction (or not) of blood vessels). These are all good proxies for general health. Drugs lowering your resting heart rate do not indi…
You think being n a Sauna is not a drug (effectively)?
Re: Sauna effect on heart rate
#230Author here. Methodology upfront because I'd ask the same things: Data: daily records from wearable users who logged sauna sessions via connected apps. Within-person design — each user is their own control, comparing their own sauna-day nights against their own non-sauna-day nights. No cross-user comparisons. Stats: paired t-tests, FDR-corrected p 0.2 threshold for "meaningful effect." Anything below d=0.2 we don't r…
Time of day could make a huge difference - if they did this close to sleeping, their body would be hot while winding down, and so would use less layers. If they fell asleep with only a sheet compared to multi-layered thick covers, their temperature would be lower for the whole night.
I know n=1, but when I started sleeping with only a sheet, my heart rate was at my lowest - my Apple Watch would ping multiple times a night because it was below 40.
Can’t comment about being cold anymore because these days I sleep on top of a spiked mat which makes my back feel like it’s on fire for the whole night.