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Regular Sauna Users May Have Fewer Chronic Diseases (reuters.com)

An anonymous reader quotes a report from Reuters: People who visit the sauna frequently may be less likely to develop heart and lung diseases or to get the flu than those who rarely go, a research review suggests. One study in the current analysis, for example, found that going to the sauna at least four times a week was associated with a roughly 50 percent lower risk of death from cardiovascular disease or coronary heart disease. This study included 2,315 people and also linked regular sauna use to a 40 percent lower risk of premature death from all causes. Another study in the analysis compared the effects of using the sauna for 19 minutes versus 11 minutes. In this study, longer sauna sessions were linked to a 17 percent lower risk of premature death from all causes, as well as a 36 percent lower chance of death from heart disease.

In a third study in the analysis, with 1,621 participants, using the sauna at least four times weekly was tied to a 47 percent lower risk of developing high blood pressure than going once weekly. Yet another study linked at least four weekly sauna visits with about 66 percent lower risk of dementia and Alzheimer's disease than going just once a week. Two other studies found going to the sauna at least four times a week associated with a 41 percent lower risk of respiratory diseases and a 37 percent lower chance of pneumonia than going once weekly.
The authors reported their findings in the journal Mayo Clinic Proceedings.

34 of 189 comments (clear)

  1. Did they control for wealth? by xxxJonBoyxxx · · Score: 3, Insightful

    Dunno about you, but my corporate gym doesn't have a sauna. Nor do the public schools, the storefront gyms or other facilities the proles commonly use. Are you sure these findings aren't just looking at wealthy white guys somewhat interested in health vs. the great unwashed cheetoh-eating masses?

    1. Re:Did they control for wealth? by Anonymous Coward · · Score: 2, Insightful

      Good call. Indeed, sauna users are likely wealthier than average, and stay in them longer when they have more free time (and therefore less stressed). I wonder what's the effect of including those who use saunas as a cultural tradition, such as Finns? Are they less likely to fall ill overall, contributing to the numbers?

    2. Re:Did they control for wealth? by whoever57 · · Score: 2

      My local gym has a sauna. Does that make me a wealthy white guy?

      --
      The real "Libtards" are the Libertarians!
    3. Re:Did they control for wealth? by aphelion_rock · · Score: 4, Insightful

      Dunno about you, but my corporate gym doesn't have a sauna. Nor do the public schools, the storefront gyms or other facilities the proles commonly use. Are you sure these findings aren't just looking at wealthy white guys somewhat interested in health vs. the great unwashed cheetoh-eating masses?

      I imagine that people who frequently use a sauna probably also utilise other forms of formal exercise, eat a healthier diet than the working class masses.

    4. Re:Did they control for wealth? by Darinbob · · Score: 5, Interesting

      In Finland, it is very common to have access to a sauna in your home, even some company buildings have them. Now true, the homeless might not have saunas but this is not so big a problem in Nordic countries.

      On the other hand, I think the reason for these stats is because saunas kill off anyone with a weak cardiopulmonary system.

    5. Re:Did they control for wealth? by quantaman · · Score: 4, Insightful

      Dunno about you, but my corporate gym doesn't have a sauna. Nor do the public schools, the storefront gyms or other facilities the proles commonly use. Are you sure these findings aren't just looking at wealthy white guys somewhat interested in health vs. the great unwashed cheetoh-eating masses?

      It's a review paper, so in some cases yes, in other cases probably not.

      But I think the hypothesis makes sense, a sauna stresses the system and is essentially a kind of exercise, a style of exercise you're going to have trouble finding elsewhere.

      In general, exercise is good for your health.

      --
      I stole this Sig
    6. Re:Did they control for wealth? by arth1 · · Score: 2

      Surely you don't become white from driving a BMW, even if you go a bit fast in the corners.

      Nor do you have to be rich - some of the older BMWs can be surprisingly good value for the money.

    7. Re:Did they control for wealth? by viperidaenz · · Score: 2

      They didn't check people who don't use a sauna at all.

      They're comparing once a week with four times a week.

      If you don't have at least weekly access to a sauna, you wouldn't be part of the study.

    8. Re:Did they control for wealth? by arth1 · · Score: 3, Informative

      I wonder what's the effect of including those who use saunas as a cultural tradition, such as Finns? Are they less likely to fall ill overall, contributing to the numbers?

      Sauna fatalities is a real thing in Finland, but it's often related to alcohol, and doing stupid things like falling asleep, or for traditional fire driven saunas, not checking the smokestack for leaks regularly.

    9. Re:Did they control for wealth? by Presence+Eternal · · Score: 3, Informative

      The article states they focused on Finnish saunas. This implies looking at a place where sauna usage is not even slightly niche, but the article also says they didn't particularly try to do anything useful with the data like filter out lifestyle types.

      That said...isn't a 50% reduction in multiple chronic health problems so huge a result as to reflect an almost guaranteed causation? Like, you don't even need a well designed study to find out aspirin is almost a panacea.

    10. Re:Did they control for wealth? by whoever57 · · Score: 5, Funny

      Not me. I have never driven a BMW. As proof, I offer the assurance that I always use the indicators on any car I drive.

      --
      The real "Libtards" are the Libertarians!
    11. Re:Did they control for wealth? by larryjoe · · Score: 2

      Dunno about you, but my corporate gym doesn't have a sauna. Nor do the public schools, the storefront gyms or other facilities the proles commonly use. Are you sure these findings aren't just looking at wealthy white guys somewhat interested in health vs. the great unwashed cheetoh-eating masses?

      Looks like the meta-analysis didn't mention any factor analysis, which should have been an obvious thing to do in a correlation-based study. Of course, the reason for that lack of analysis could be that the studied papers themselves avoided factor analysis (which seems to be the case at least for the first five or so paper abstracts that I scanned).

    12. Re:Did they control for wealth? by Joce640k · · Score: 2

      They didn't check people who don't use a sauna at all.

      They're comparing once a week with four times a week.

      If you don't have at least weekly access to a sauna, you wouldn't be part of the study.

      Duh! That's because almost everybody uses saunas regularly in the countries under discussion.

      --
      No sig today...
    13. Re:Did they control for wealth? by zwarte+piet · · Score: 2

      They live in shit weather and darkness 9 months per year so that probably negates any health benefits.

    14. Re: Did they control for wealth? by nowwith25percentmore · · Score: 2

      Do sweat shops count as saunas?

  2. Four Times a Week? by Nova+Express · · Score: 4, Insightful

    There's some big time causation != causality going on there.

    How many people who are already sick/significantly overweight go to a sauna 4 times a week? Even when I had a haelth club membership, I rarely went more than thrice a week.

    Sounds like a study whose entire effects were determined by the self-selection of healthy people.

    "People who regularly compete in triathlons are 95% less likely to develop diabetes." Yeah, I bet...

    --
    Lawrence Person (lawrencepersonh@gmailh.com (remove all "h"s to mail)

    http://www.lawrenceperson.com/

  3. Re:Ok what gives? by xxxJonBoyxxx · · Score: 5, Funny

    The Mayo Clinic is also surrounded by Minnesotians, many of whom are essentially land-locked Vikings who have been repressed by petty factions of Lutheranism for centuries. Their only remaining outlets are eating salted canned fish and sitting in saunas. Ergo, those who don't unleash at least a little of their inner Dane with other men in a steaming hot room are condemned to a sad life with polite but homely women, and early demise (as demonstrated by this study).

  4. Re:The health benefits of driving a BMW by 93+Escort+Wagon · · Score: 2

    On a related note, owners of large motor homes are 75% more likely to die in the next 10-15 years compared to the average person!

    --
    #DeleteChrome
  5. Sisu vs sissy by arth1 · · Score: 4, Informative

    Finnish (and Scandinavian, Baltic and Russian) saunas are quite different from American saunas. The maximum allowed temperature in American saunas is 194F or 90C, and the common temperature is much lower than that, often in the 120F/50C range. With people wearing bathing suits.
    Meanwhile a Finnish sauna is typically kept around the boiling point for water, and unless water is poured on the rocks, it can be in the 230F/110C range. And, of course, people go naked in Finnish saunas. You have to be, and not bring any towels that aren't cotton or linen.

    Oh, and Americans don't whip themselves with birch twigs in the sauna, nor roll in the snow afterwards either.

    1. Re:Sisu vs sissy by Anonymous Coward · · Score: 3, Informative

      I went in the Finnish sauna, with an enthusiast who made sure it was hot. Very brutal.

      No, that wasn't an enthusiast, it was an idiot.

      The etiquette in a sauna is that the temperature and the moisture is calibrated so that everyone enjoys it. Purposefully overheating it is something that idiots do.

    2. Re: Sisu vs sissy by phantomfive · · Score: 2

      It takes time for the heat energy to transfer to your body. If the air is moist, it transfers more quickly. In a drier sauna, it transfers more slowly. If you sit in a sauna long enough you'll probably heat up enough and die but I've never done that.

      --
      "First they came for the slanderers and i said nothing."
    3. Re:Sisu vs sissy by Opportunist · · Score: 2

      Then you either exaggerated your own sauna experience when he asked you, or you found the one Fin that would rather show off and make you feel miserable than accommodate you and make your sauna experience a pleasurable one.

      Sauna should be an enjoyable event. It's supposed to relax you and be comfortable. The very last thing it should is to put undue stress on you, like, say, by being too hot. Yes, it's true that Fins like their sauna hot, for the same reason Thais like their food spicy: They're used to it. But they're not insensitive to the fact that most foreigners aren't.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    4. Re:Sisu vs sissy by Anonymous Coward · · Score: 3, Informative

      Finnish (and Scandinavian, Baltic and Russian) saunas are quite different from American saunas. The maximum allowed temperature in American saunas is 194F or 90C, and the common temperature is much lower than that, often in the 120F/50C range. With people wearing bathing suits.
      Meanwhile a Finnish sauna is typically kept around the boiling point for water, and unless water is poured on the rocks, it can be in the 230F/110C range. And, of course, people go naked in Finnish saunas. You have to be, and not bring any towels that aren't cotton or linen.

      Oh, and Americans don't whip themselves with birch twigs in the sauna, nor roll in the snow afterwards either.

      As a Finn with quite wide experience of different kind of saunas, I can assure you that there are Finnish saunas that can be around 50C and there is nothing wrong with them, it is actually very common to have lower temperatures for long relaxing sauna sessions. Not all of us like those "birch twigs" ("vasta" or "vihta") either even if used correctly they are really nice. Snow is very rare during other seasons but winter, but even during the winter, snow diving is not for all of us.

      Being nude in sauna serves a purpose; you sweat in sauna, and you are there to clean up. You don't shower with your clothes on either.

    5. Re:Sisu vs sissy by TeknoHog · · Score: 2

      As a Finn with quite wide experience of different kind of saunas, I can assure you that there are Finnish saunas that can be around 50C and there is nothing wrong with them, it is actually very common to have lower temperatures for long relaxing sauna sessions. Not all of us like those "birch twigs" ("vasta" or "vihta") either even if used correctly they are really nice. Snow is very rare during other seasons but winter, but even during the winter, snow diving is not for all of us.

      Being nude in sauna serves a purpose; you sweat in sauna, and you are there to clean up. You don't shower with your clothes on either.

      This. I'd like to add that the ideal temperature usually scales with the size of the sauna; in smaller ones, the steam of löyly is more easily concentrated so you get the same effect at a smaller average temperature. Of course, the steam itself will be around 100 C, but you won't be steaming yourself all the time.

      For the proper /. analogy, löyly (throwing water on the stove) is exactly like a heat pipe: water evaporates at the stove and condenses on your skin, thus providing fast heat transfer at a fixed temperature.

      On the point of nudity, while Finns are generally comfortable with the collective nudity of sauna, we don't deny the potential erotic aspects of it. Mixed gender sauna sessions are usually limited to couples, families with small children, and other close-knit groups. Different shifts for men and women are also a practical matter at larger gatherings.

      --
      Escher was the first MC and Giger invented the HR department.
    6. Re:Sisu vs sissy by Shinobi · · Score: 2

      If the saunas are 50C, there's a big problem with them, they've essentially become incubation chambers for bacteria and viruses.

  6. Re:Ok what gives? by Anonymous Coward · · Score: 4, Funny

    Yeah, we Minnesotans have four things we can do in the winter: Medieval sword fighting, drunken snowmobile racing over open water, eating dead fish canned in lye, and visiting the sauna. One of those is safer than the others.

  7. Cardiovascular Conditioning by PseudoAnon · · Score: 5, Interesting

    I'm not finding the article I'm thinking of at the moment, but I've read that sauna use is particularly helpful for people who may be too obese or injured to comfortably exercise in other ways (though if this applies to you, I suggest trying swimming / pool exercises) or who are sedentary and not used to more-than-brief cardiovascular challenge. At a minimum, sauna use causes short-term cardiovascular changes that the body has to adapt to, and a major way it adapts is by increasing blood vessel elasticity and blood flow to the skin like exercise does. It sounds similar to healthy stretching that many people do for their muscles but for blood vessels (which also contain muscle) instead. Side note: saunas are also a great place to do stretches or massage since muscle and connective tissue elasticity increases as well. Be a little cautious with doing those if you have an injury resulting in joint looseness though!

    From another article:
    "On average, the study found, sauna users' blood pressure dropped by seven points and their arteries became more "elastic" (based on non-invasive tests).
    In addition, their heart rate rose from an average of 65 beats per minute before the sauna session to 81 beats afterward."
    https://www.webmd.com/heart/ne...

    - A Doctor of Physical Therapy

  8. Re:The health benefits of driving a BMW by BeTeK · · Score: 4, Informative

    If you are implying that only rich people have saunas that's incorrect in Finland. EVERY house has sauna and in apparments they have community saunas. Actually it's hard not to find sauna close by in Finland :) And yes I'm a finn and I love to go sauna every week :)

  9. Or the exact reverse.... by DrYak · · Score: 2

    a sauna stresses the system and is essentially a kind of exercise, a style of exercise you're going to have trouble finding elsewhere.

    Or it might be the exact opposite :
    Sauna stresses the system, and thus only people with a functional enough cardio-vascular system go there.

    The people with bad hearths don't go there AND die younger.

    --
    "Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
    1. Re:Or the exact reverse.... by geekmux · · Score: 4, Interesting

      a sauna stresses the system and is essentially a kind of exercise, a style of exercise you're going to have trouble finding elsewhere.

      Or it might be the exact opposite : Sauna stresses the system, and thus only people with a functional enough cardio-vascular system go there.

      The people with bad hearths don't go there AND die younger.

      Exactly this.

      At first I read the statistics being presented here as potential evidence that saunas have a considerable health benefit, but it's far more likely that those who actually get off their ass and use a sauna are not the kind of lazy obese people that die of heart and lung diseases due to an inactive lifestyle.

      And yeah, I hate when statistics often showcase nothing more than water-is-wet common sense. It's like saying that 99% of professional ballerinas are not obese, so ballet is now "statistically proven" to be one of the greatest solutions in the world to combat obesity.

    2. Re:Or the exact reverse.... by tbannist · · Score: 2

      I read through some of the linked paper because I was wondering the same thing, they mention in Clinical Implications section that they don't think the results are likely to be an exercise correlation because most of the studies they used in their analysis were supposed to have controlled for exercise levels, and they found that the combination of exercise and sauna usage had a larger beneficial health effect that either exercise or sauna use by itself. Furthermore, the pathways section suggests that the evidence indicates that 30 minutes in a sauna has a cardiovascular effect similar to medium to high intensity walking for a similar duration, so they have an identified mechanism for why sauna bathing causes the published results.

      These are mildly interesting results, but I think the biggest danger, as they acknowledge in the Clinical Implications section, is that most of the studies they examined had small sample sizes, so the results may be tainted by publishing bias (i.e. only the studies that found positive results were published). I'm sceptical of the results, but it seems worthy of devoting some resources to conduct a larger study of the benefits of sauna usage on patients with high blood pressure conditions to see if the results hold up in well-designed and correctly sized study.

      --
      Fanatically anti-fanatical
  10. Swimming ! by DrYak · · Score: 4, Informative

    {...} to comfortably exercise in other ways (though if this applies to you, I suggest trying swimming / pool exercises)

    This.
    Thousand time this.

    Due to the weightlessness-like caused by the water, you can actually swim/do pool exercies even if you're completely hopeless for any other type of physical exercises.
    Even if you're weak to the point that you can't walk around, you can still swim (Though in that case don't attempt it on your own the first time without specially trained supervision). There's a reason why swimming pool is used in physical rehab: it's really that good/useful.

    If you need exercice, go to the pool (and optionally consider registering for gym at the pool).

    Then it's followed by biking and then a little bit further down by rowing (Either the actual out-door sport, or on devices), as your weight is distributed over more points (on a bicycle, your weight is distributed over 5 points, you don't put so much stress on single joint like when, e.g., running) and the effort is spread over more muscle groups (in case of rowing you basically extend your whole body), and you can also adapt the level of efforts (light pace on flat, instead of pedaling like a maniac trying to beat the pack uphill).

    As some scale, simply walking (instead of taking the car) or climbing the stairs (instead of taking elevators/escalators) is a good light exercise.

    Consider eventually introducing bike to work (consider using e-bike to pedal-assist to be less sweaty), well at least when you live on the side of the Atlantic where "going to the groceries" doesn't mean "2 hours car trip".

    --
    "Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
  11. Some needed information by Anonymous Coward · · Score: 5, Informative

    So many are wrongly commenting that this only proves that rich persons are healthier than poor. These studies were made in Finland. In Finland we have about 3 million saunas and a population of about 5 million. It means we have pretty much one sauna for each household. We in Finland are crazy about our saunas and both rich and poor go to sauna. You have to search for a very long time to find even one house without sauna or access to a sauna. All new houses do have saunas and the older houses often have a separate sauna building on the back yard.

    In Finland we do not have much homeless people at all. Those very, very few we have are it by own choice because our social system makes sure everybody got a place to live. Finland it quite unique in this regard, even among the Nordic countries. If you have problems (drugs, alcohol, unemployment, depression, whatever) and you are not able to pay for own living, you get it for free. It is like the motto would be "first a place to live, then we try to fix your other problems".

    In Finland sauna is nothing you happen to visit just after some exercise. Instead it is a way to relax and both fat and thin, young and old are going to sauna just because it feels so good.

    1. Re:Some needed information by TeknoHog · · Score: 2

      In Finland we do not have much homeless people at all. Those very, very few we have are it by own choice because our social system makes sure everybody got a place to live. Finland it quite unique in this regard, even among the Nordic countries. If you have problems (drugs, alcohol, unemployment, depression, whatever) and you are not able to pay for own living, you get it for free. It is like the motto would be "first a place to live, then we try to fix your other problems".

      A Finn here. I don't know about the homeless specifically, but it's possible to fall outside the social care for reasons other than your own choice. The problem is with the bureaucracy, which can be hard to deal with if you're burdened with illness. In many cases, your illness is not considered serious enough to get extra help. This often means mental illness or conditions like the chronic fatigue syndrome, which are hard to diagnose properly. To the outside, it may look like these people are giving up and choosing to drop out. If you're lucky, your friends and family can help you, both directly and in dealing with the bureaucracy.

      As a taxpayer, this pisses me off. I'd rather give directly to the poor (e.g. via basic income) than fund the Kafkaesque system. In case I give directly to my friends, it means (1) I have to earn more, thus paying more taxes, and (2) they may have to deal with extra bureaucracy and taxes due to the extra income. Good times!

      --
      Escher was the first MC and Giger invented the HR department.