Plain-English writing on recovery, what the research actually says, what it doesn't, and how to use the gear. No hype.
What the cold-shock response actually is, what the research shows, and the claims it doesn't support.
The real differences between sauna types, and why traditional dry heat sits behind the longevity data.
How to schedule cold around training so you don't quietly undercut muscle growth.
The cardiovascular load of heat, the Finnish cohort findings, and the honest limits of "sauna is cardio".
Space, power and what you actually need to run contrast therapy at home.
The Buijze trial, what "29% fewer sick days" really means, and why we won't say "boosts immunity".
Explainers and conversations we rate, from people who cover this well. These are external links, not evidence, and not endorsements: for the actual studies, see our Science page.