Cognitive Health

Heatwaves don't just feel uncomfortable, they measurably reduce cognitive performance and tank your readiness. Here's the science of what heat does to your brain, your sleep, and your bio data, plus how to use that signal to schedule the right work on hot weeks.

The playlist that worked perfectly on Monday might be exactly wrong by Thursday. The science of focus music is more nuanced than "put something on," and for women, the hormonal shifts across the cycle change which sounds actually help your brain work. Here's what's happening and what to try.