I highly recommend trying out BJJ (Brazilian Jiu Jitsu). Not only is it physically and mentally stimulating (I like to refer to it as physical chess), it also m

I highly recommend trying out BJJ (Brazilian Jiu Jitsu). Not only is it physically and mentally stimulating (I like to refer to it as physical chess), it also makes you appreciate how vulnerable you are, and by extension why to avoid physical altercation at nearly all costs. An added bonus is that you'll be able to defend your self against most people.