What causes muscle soreness (DOMS) after a workout?
Muscle soreness, known as delayed onset muscle soreness (DOMS), occurs due to damage to muscle fibers, specifically myofibrils. This damage requires repair, which is facilitated by lysosomes that absorb water into the damaged area, causing localized swelling that can pressure nerve endings. It's important to note that muscle soreness can occur from various activities, not just from gym workouts.
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