[davidtanner]

BJJ is a good cardio/strength fun activity that doesn't feel boring and is social.

Contact, and especially grappling type sports do tend to make people stronger since they involve a lot of grabbing, twisting, lifting, etc. of another person's body as they resist.

BJJ can be done in a playful and relaxed way or very competitive and grinding. One can do it a small space on cheap mats with friends or at a formal school or competition.

It's full of possibilities and things to learn so it doesn't get boring.

[natejenkins]

Ah yes, I forgot about grappling sports. BJJ does look like great fun as long as you are not required to get the cauliflower ears. I once had a friend "demo" it to me by challenging me to punch or kick him. By the end of the demo I was done punching or kicking for quite some time.