I would like to submit a general question for consideration, one which applies to many comments in this thread: Does a human need sex to be happy?

As corollary: If sex is needed to be happy, what do you say to those men and women who for various reasons cannot express themselves sexually? Similarly, what would you say to the manifold priests, brothers, and religious sisters, who have very little problem with celibacy? What would you say to young men and women who abstain from sex?