Put more sex in your life: It slows aging. A Scottish study found that thrice-weekly action stripped at least four years off participants’ faces, and getting busy even boosts immunity and reduces heart disease
I’m going to go out on a limb here and assume that who you are having sex with also matters. I don’t think thrice-weekly gay sex with a Haitian drug addict is going to slow aging, except perhaps in the sense that one actually isn’t getting any older.