Muscle soreness from exhaustive or strenuous activity is called DOMS, and it's a good indicator your body is trying to limit your mobility so it can more easily rebuild itself afterward.
http://en.wikipedia.org/wiki/Delayed_ons...e_soreness
One thing I noticed when I picked up doing heavy squats and deadlifts was that I started breaking out on my face and back - worse than when I was a teenager. I managed to get that in control by wearing a clean t shirt to bed, a clean undershirt daily, washing my pillowcases every few days, using a new towel ever other day and a separate clean towel for the gym, and not drying my hair with my towel first, and when I do dry my hair with my towel, I always use the ends of the towel and never use the ends of the towel on my face or back.
http://en.wikipedia.org/wiki/Delayed_ons...e_soreness
One thing I noticed when I picked up doing heavy squats and deadlifts was that I started breaking out on my face and back - worse than when I was a teenager. I managed to get that in control by wearing a clean t shirt to bed, a clean undershirt daily, washing my pillowcases every few days, using a new towel ever other day and a separate clean towel for the gym, and not drying my hair with my towel first, and when I do dry my hair with my towel, I always use the ends of the towel and never use the ends of the towel on my face or back.