Physical fatigue

Fatigue is a common problem involving the physical and mental state, where a person feels helpless and weak. Physical and mental fatigue are different, but they usually occur together.
Physical fatigue usually manifests itself in muscle weakness, pain in different parts of the body, depending on the type of load. Usually after some rest (relaxation of muscle tension, resting mode, sleep, oxygenation of the organism, etc.), this fatigue disappears in a short time.