E.J.
I have a three-year old (almost four)son and an one year old son. The older one is very high energy and occassionally is too rough with his younger brother (even though generally he is very careful and concerned with him). I have noticed it gets worse when he feels he is not getting enough attention and if he is watching cartoons that are "wild"... I do not know if those situations come up with your older son, but if you can pinpoint and address the root of the behavior, it might alleviate some of it. That said, I think boys do tend to be more physical - especially around this age. He needs to know that he can direct this energy into fun games of some sort but never at people. I think it is also very important to not allow a lot of fun "rough housing" or play with violent toys, etc. and then be trying to teach him not to hit and kick. It is hard for a kid of this age to tell when he has crossed the line, especially when he is excited. I think you will find that the positive reinforcement works better and better as time goes on - maybe some sort of sticker reward system would be useful. Well, I hope that you find a way to address this! Good luck!