Exercise research summarized honestly: muscle physiology, fatigue, sleep, heat and altitude adaptation, with sample sizes and effect sizes given.
Time off does not erase your training. What detraining research reveals about muscle memory, movement skills the brain keeps, and why regaining fitness beats starting over.
Heat training expands plasma volume and can lift endurance performance in weeks — modestly, per small trials — but it takes real heat and real caution.
Decades of trials point to real strength and power gains from creatine monohydrate — but the effect size depends on who's taking it, and the kidney fears haven't held up.
Low-carb training genuinely rewires fat burning — and in controlled trials with elite endurance walkers, it either matched or slightly worsened race performance.
The supercompensation model explains why timed recovery produces gains — and modern physiologists treat it as a useful simplification, not a law.
Training around the menstrual cycle sounds like precision sport science — the studies behind it are too small and too inconsistent to prescribe from yet.