Muscleception

Each muscle is made up of thousands of tiny muscle fibers. When you do body weight exercises, your muscles develop tiny tears in the fibers. When you rest, your body begins repairing your damaged muscle cells by fusing torn muscle fibers back together and laying down new proteins within each musc...

Instead of fiberglass, single-use respirators are made from melted polymer and air-blasted into layers of tiny fibers with bigger spaces between them.

As particles fly into this maze of fibers, they get stuck. An electrostatic charge is added to the material, so even smaller particles are...

One can get stronger by increasing the size of the individual muscle fibers, and by recruiting more of the muscle fiber to work together when needed. 

A bulky body is also considered a negative in certain sports. Getting bulky is a specific, targeted training which includes high-volume exer...