Lactic Acid build up causes your muscles to become sore after exercise.
True
False

True

Explanation:

If your talking about exersize right after you drop the weight then yes due to the lactic acid build up. If you are referring to the next day/days, then no. The Muscle soreness comes from micro-fiber tears in the muscle that can be a bit painful if alot of stress it placed on that specific muscle.

the answer is anaerobic activities