Boxing as in being repeatedly hit in the head with considerable strength? I have my doubts about this being a healthy lifestyle, but I would be interested to see statistics on longevity among people who were active boxers compared to the rest of population.
I've thought about picking up boxing. It seems like the desire to not be hit in the face would be good motivation to exercise regularly between matches. Like you though, I'm a bit worried about the risk of concussion and having my nose broken, and thus haven't taken the plunge.
I might recommend something like Brazilian Jiu-Jitsu instead.
It definitely can cause physical pain, but concussion generally isn't something you worry about with BJJ. That isn't to say that it's impossible, but I do believe the risk is SIGNIFICANTLY lower.
Arguably, BJJ works as a better self-defense art than boxing as well, though for it to be truly effective, you generally pair it with a striking art.
