Salsa is a good aerobic sport. Look at the people who dance for a few hours and you'll see how they're sweating. The best thing about salsa is that, without realizing it, you can play sports for hours, it's not like going for a run, for example, which you have to work on to motivate yourself. Salsa dancing is safe, there are almost no injuries compared to other disciplines.
Salsa dancing increases your self-confidence.
This is especially true for men. In case you didn't know it, in Salsa (and in all dances in pairs), the man is the one who leads the movements (this is only true for the dance world...), so when you know how to dance a little and command the dance, you will feel that you are controlling at least one thing in your life.