“maybe, just maybe, healthy people are the ones going to saunas...saunas don’t necessarily make you healthy.”
Yep. All the saunas I know about are in gyms. People in gyms are healthier because they work out and, also, unhealthy people have less energy to work out and therefore are not found in gyms.
Something I learned in statistics; correlation does not mean causation.
Yep, you got that right. Go into any military gym, and probably 20-percent of folks will go for a 10-minute piece into the sauna, after their 50-minute work-out. I noticed that for years.
You can likely find similar statistics that show people who drink regular unsweetened ice tea instead of Pepsi or Coke...are less likely to be diabetics. But you’d get the same values if they just drunk spring water.