a phrase used whenever you see someone who can be classified as a "there he is". if you say there he is and the person you are with doesn't know who you are talking about then the person probably isnt a there he is.
you'll know.
(man in skirt with long beard walks across street walking a doberman)
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.