I might recommend something like Brazilian Jiu-Jitsu instead. It definitely can cause physical pain, but concussion generally isn't something you worry about w

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.