I agree this is more political than science. Dr. Rhonda hasn’t heard this junk 50 times so I’m willing to give some slack. How many species are now extinct? And HALF of all existing species will die in 83 years? Big claim.
How long and how hot? Dry or wet sauna?
Is any activity you can do for 45 minutes “high intensity”? What effect would six full effort 30 second sprint have on new telomere DNA? Holistically, six “wind” sprints appears to have less joint stress than 45 minutes of running.
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