Fit but fat? Fitness vs fatness and mortality
Is it better to be fit and overweight than thin and unfit? What the fitness-vs-fatness research shows, where it falls short, and what it means for you.
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Is VO2max overrated? Fitness, body fat and longevity
VO2max strongly predicts lifespan, but is it overrated? What it really measures, how body fat skews it, and why strength and activity matter too.
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Ozempic, GLP-1 drugs and fitness: protect your VO2max
GLP-1 drugs like Ozempic and Wegovy cause large weight loss, but part of it is lean mass. How to protect muscle and VO2max while you take them.
VO2max, insulin sensitivity and type 2 diabetes risk
Low fitness is one of the strongest predictors of type 2 diabetes. How aerobic training improves insulin sensitivity and blood sugar, and what the trials show.
Why your VO2max drops when you gain weight (and rises when you lose it)
VO2max is expressed per kilogram, so a few kilos move the number and the effort of every run. Here is the maths, and what it means for training and racing.