What if the brain prepares your actions before you ever “decide”—and what does that really mean for free will?

Researchers in the United States recently worked on AI-powered muscles, made from lifelike materials, paired with intelligent control systems. Their technology is claimed to be capable of learning ...

Endurance cyclists need a high percentage of type I fibres so that their muscles can work for the duration of a race without getting tired. These muscles are red in colour because of the amount of ...

A mock-up of an AI-powered glove with muscles made from lifelike materials paired with intelligent control systems.Georgia Institute of Technology Researchers in the United States recently worked on ...

Contributed by Ronald M. Evans; received December 31, 2024; accepted April 8, 2025; reviewed by Grant Barish and Yong-Xu Wang Skeletal muscle predominantly relies on mitochondria for energy production ...