Important
Best ValueNutrition
The dessert with a cocoa-flavanol dossier.
Cost$4–8
TimeNone
EnergyEffortless
ImpactModerate
26Nice to haveEvidence: mixed
Sauna
3–4x/week.
Priority Matrix
The numbers.
Four dimensions, scored 1–6, where six is always the good end: cheapest, quickest, easiest, highest impact. Priority is Impact squared, divided by what it costs you in energy, money and time.
Cost$50–200/mo
Time80 min/wk
EnergyEasy
ImpactHigh
How sure we are
MixedReal studies disagree, or the effects are small and noisy.
Kept separate from the priority score on purpose: confidence in the evidence never raises how worth-it something is.
What we read
- Association Between Sauna Bathing and Fatal Cardiovascular and All-Cause Mortality Events
JAMA Internal Medicine · 2015
In 2,315 middle-aged Finnish men followed 21 years, 4–7 saunas a week was associated with a 63% lower sudden-cardiac-death risk and 40% lower all-cause mortality versus one sauna a week — a comparison between men who already sauna, not a trial.
- Cardiovascular and Other Health Benefits of Sauna Bathing: A Review of the Evidence
Mayo Clinic Proceedings · 2018
A clinical review of the Finnish cohort and smaller experimental studies: regular sauna looks like a form of passive heat training, with blood-pressure and arterial-stiffness signals, and almost no randomized outcome data.
Research from University of Eastern Finland. We cite their published work. They have no involvement with Anew.
Where this falls down
Not for everyone. Unstable angina, recent heart attack, severe aortic stenosis, and pregnancy are standard reasons to skip a hot sauna; alcohol plus heat is a documented way to die in one.
Still unknown. The mortality numbers come from one Finnish male cohort that already saunaed; they have not been reproduced as an assigned intervention.
Topics
Where it fits.
Related products
The gear.
Products that share a topic with this intervention. Same matrix scoring, same restraint.
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