Those suggestions might hold up for some people but even those seemingly innocuous avenues might cause things to go awry when used as tools for emotional regulation. And, maybe my counter-arguments falls outside of the scope of the qualifier "healthy". But, I'd be mindful of the two devolving into exercising too much, which isn't fun to deal with (persistent injuries), and eating disorders that cause anxiety of their own. At least, that's what happened to me.

For some of us, the way to deal with numbing stuff means changing our lives so there is less numbing needed.