Heat & Performance
Chess, cognition, and temperature
Working memory and decision making degrade above 25°C. From Fischer-Spassky 1972 to recent research, why cognition has a thermal ceiling.
JOURNAL
THE THINKING BEHIND THE TOOL.
Notes on heat, recovery, palm cooling, and the moment between efforts. Long-form context for what we are building and the science behind it.
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Palm Cooling
Why two hands is 1.6, not 2
Both palms draw on the same central blood supply, so a second cooled hand takes you to about 1.6 times one hand, not two. Why that is, an...
Heat & Performance
The bedroom is the most underrated performance variable
Optimal sleep happens between 16 and 19°C. Why core temperature must drop to access deep sleep, and why most bedrooms work against recovery.
Heat & Performance
F1 and the one-degree window
F1 teams treat one degree of tire and brake temperature as decisive. What motorsport's obsession with heat teaches the rest of athletic c...
Heat & Performance
Why Do My Hands Get Hot When I Train?
Your hands get hot when you train because the palms are one of the body's main heat release valves. What that signal means, and what it c...
Heat & Performance
Brown fat and the cost of being warm
60 to 70 percent of basal metabolic rate maintains body temperature. Brown adipose tissue, the metabolic cost of staying warm, and athlet...
Heat & Performance
Humans Became Endurance Predators Through Heat Regulation
Humans evolved to sustain effort in heat longer than most animals. Temperature regulation has always been tied to performance.
Heat & Performance
Singapore and the productive day
In 1999 Lee Kuan Yew named air conditioning the most important invention. Why temperature is a productivity variable that shaped economies.
Heat & Performance
Why Performance Drops Before You Feel Tired
Athletes often assume performance drops when fitness runs out. In many cases, the body begins reducing output earlier, as thermal strain ...
Heat & Performance
Why Temperature Shapes Performance
Temperature does not only affect comfort. It affects output, cognition, recovery and repeatability. That applies to economies and to athl...
Palm Cooling
You cannot destroy heat. You can only move it.
Energy is never destroyed, only moved. The engineering principle behind every system that produces work, and the body that performs under...
Heat & Performance
Heat Is Becoming a Safety Problem in Sport
Exertional heat stroke is one of the leading preventable causes of death in athletes. As training intensity rises, heat management become...