Research-backed, actionable articles on AI at work, endurance training and how people learn. Every claim has a source.
Mental fatigue lifts the effort you feel and shaves a few percent off your output. Ten studies, from a 15% drop in the lab to a near-null result in 117 riders.
Read the article →Among 78,912 Boston finishers, even pacers collapsed late in 0.2% of races and erratic ones in 85.4%. Seven studies on the start pace that sets your finish.
Read the article →In 210 Ironman triathletes, cramping tracked cramp history and finishing time, not serum sodium or weight loss. The evidence, and what to do mid-race.
Read the article →Rinsing maltodextrin and spitting it out cut a 1-hour cycling trial by 1.8 minutes. Pooled across 35 studies the gain falls to 0.18 SD. The dose and the timing.
Read the article →Two meta-analyses and three trials on HRV-guided endurance training: the same fitness off fewer hard sessions. Measurement rules and the daily decision rule.
Read the article →A 10% faster step rate cuts peak patellofemoral force by 14% in the lab. The nine studies that bound the effect, the cost in speed, and a 6-week plan.
Read the article →A 38-trial meta-analysis puts the gain at 1.7% on one-minute efforts, and a 40-minute run trial found nothing. The dose, the timing and the gut test.
Read the article →Creatine kinase rose 340% after a first downhill run and 63% after the second. Eight studies on eccentric preconditioning, the dose, and the timing.
Read the article →Beetroot juice bought club cyclists 2.8% over 4 km, and nothing at all at 72 mL/kg/min. The dose, the 2.5-hour window and the mouthwash mistake.
Read the article →Cycling 4 hours after a learning session beat cycling right after it, and exercising during study did nothing. Nine studies on timing, intensity and a schedule.
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