SCIENCE · Scientific American

How does mental fatigue begin in the brain? - Scientific American

Published: 2026-11-04T14:30:00.000Z · 3-Minute Executive Summary

Scientific American reports that <a href="https://news.google.com/rss/articles/CBMijwFBVV95cUxOUFJSWjh Ody1jb3FiVEV0U09UNkw5STJuVWJMMWZEVEtxUGZOOUluOU9hQkpSSzd1UDZzMnBnRHJjVjJwcWVsSmRuczU0aWRYZW1zSVNMZGxVeWo4UXB1VG84eUVQVnBFeGgzS19hSE9KZ2xxS3pzU0ZicW9WRjdq RkI2cVpnZGFpNUhFUXN2cw?oc=5" target="_blank">How does mental fatigue begin in the brain?</a> <font color="#6f6f6f">Scientific American</font>