Why does Delayed Onset Muscle Soreness (DOMS) happen with muscles? Why does it take your muscles 12-24 hours to become sore and feel pain, whereas with injuries the pain is instant and doesn’t buildup slowly over the days

Question

I just went to the gym this morning, and now I’m beginning to feel the pain. Afterwards I felt my muscle being fatigued and weak but there was no soreness/pain. Now 12 hours later I’m begging to feel the pain and by tomorrow morning I will be in a world of pain. Why does this happen?

In: Biology

Answer 1

Or, it could be the buildup of lactic acid in muscle tissue due to anaerobic respiration when exercising