Kickboxing/MMA/BJJ or Tennis

[Ryadh]

Which one is more healthy and better cardio? What are your guys experience with them?
One on hand I want to start playing tennis to reconnect with old HS friends I knew on the team (social life maxxing), but on the other hand knowing how to decently fight would be a huge confidence/low inhib boost and probably make me more confrontational

 

[overtier1011]

MMA

 

[rubberduck]

getting punched in the head getting brain damage and disfiguring your face is no way to looksmax

best sport is hockey with full face protection so no elbows or bumps to the nose or face, unlike soccer basketball etc