Too Much Exercise Can Tire Our Brains Out, Too (Discover Magazine D‑brief):
“For years, the National Institute of Sports, Exercise and Performance (INSEP) in France had been studying an unusual phenomenon. If an athlete’s workout regiments were ramped up, it didn’t always lead to a better performance — even if that athlete felt like they were working harder than before.
The organization called this phenomenon overreaching, and knew what the physical symptoms were. But the organization wanted to know if any symptoms of fatigue were appearing in the brain, too. New research says yes. [Read more…] about Study: Strenuous physical exercise may lead to cognitive –not just physical– fatigue