I am 6 feet 1 inch, 155 pounds. I have never really worked out and i'm fairly skinny but after a month and and half i have seen some promising results. Each night I do 50 push ups and sit ups to build alittle muscle. I just do it on the floor and its very repetative but I do not mind that. I was wondering if it was healthy to continually do this, i heard that you need to give muscles time to heal to get better results. Also, i wanted to ask if there were any other good, simple, routines i could do. I think that's about it, my goal is to get a six pack and whatever else i guess. I like to be modest and secretive about this because i'm only doing it for myself and a girl who doesn't care if i do it or not, so i'm not into weights or machines.