i know the concept of gaining muscle is you tear your previous muscle so that it grows bigger, but how do you know when its been too much? like i have 20 lb free weights that i do every other day, until i am to tired to do anymore. sometimes on the days of my workout though i am still sore from the last time i did it, is it okay to still do weights, pushups, stuff like that? or do i have to wait until they arent sore anymore to work out again?
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