You can be as healthy as anything although your labido may drop. does vary between men. look at monks for example!!! theyre celebate!! Ejaculating is good for you tho, labido and sperm wise and sperm only lives for 5 days. Men can also orgasm without ejaculating, like women do!
I've never been motivated enough to not have an orgasim for longer than 3 days.
That varies from man to man.