DOMS stands for Delayed Onset Muscle Soreness, the familiar muscle pain, stiffness, and tenderness that appears 12-72 hours after strenuous or new physical activity, not during it, caused by microscopic tears in muscle fibers and the body's repair process, making muscles stronger. It peaks around 24-48 hours post-exercise and resolves within a few days, with symptoms like tenderness, swelling, and reduced strength. This typically signifies muscle adaption.
