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 →Three meta-analyses and a 231-student experiment on video playback speed. Comprehension holds to 1.5x, transfer degrades most, and the saved time only pays if you spend it.
Read the article →A meta-analysis of 100+ papers puts chain-of-thought gains at 14.2 points on symbolic tasks and 0.7 points on the rest. Where thinking helps, where it hurts, what to switch on.
Read the article →Structured interviews predict job performance at 0.42, unstructured ones at 0.19. Eleven sources on why the free conversation misleads, and the script that replaces it.
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 →A meta-analysis of 171,055 readers found paper beats screens on informational text. The gap sits in self-paced reading, and one habit closes it.
Read the article →Observers judge AI users as lazier, and disclosing AI use lowers trust in 13 experiments. The evidence, and the way to present AI-assisted work that costs least.
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 →A 2025 meta-analysis of 374 effects prices the first offer: g = 0.42 for moving first, g = 1.14 for opening ambitious, and more deals lost. With a protocol.
Read the article →Short recall tests placed between lecture segments cut mind wandering from 39% to 19% and rescued the final stretch. Six studies and a protocol for trainers.
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