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- StepsStep counts are the most quoted fitness number. Here is how the claims around them hold up against the studies.
- SleepHow much sleep is enough? We check the numbers people quote against large cohort studies.
- ProteinProtein for muscle comes with a lot of round numbers. We look at what trials show and where the evidence gets blurry.
- VO2maxVO2max is the fitness number that longevity talk keeps coming back to. We check what it can and cannot tell you.
- Zone 2Zone 2 training is everywhere. We check where the idea comes from and what the studies actually tested.
- Grip strengthGrip strength shows up in longevity studies. We check what it measures and what it doesn’t.
- FiberFiber is the unglamorous habit with a lot of studies behind it. We check what they show.
- StatisticsNumbers can be true and still mislead. These checks look at how risks are reported, so you can ask better questions.