This Baptist disagrees with the conclusions of this study. So does my wife!! :-)
is that an Amen? ;)
(I think it would work for Saturday Synagogue goers, too.)
My own hunch is this: of itself, sex can go one of two opposite ways:
With the first, all you care about is a pattern of pleasurable sensate experiences for yourself primarily, like taking drugs or riding in a roller-coaster: essentially solipsistic, and ultimately lonely, sad, and disappointing.
With the second, sex turns you powerfully outward toward a person who is specifically different from you (your sexually-differentiated spouse, not a mirror of "you", but a real, genuine "other"); outward toward the children you beget and conceive, who are the living embodiments of you and your spouse, and a whole "other" generation; and outward toward God, who primordially blessed the human sexual embrace back at the dawn of human existence, and doubly blesses and exalts it in the Sacrament of Matrimony.
So sex is either a baited trap that locks you in your own sensate meat, and ends up in death, that's it; or a life-force that propels you outward toward your beloved "other," your children (a multiplication of you and the "other,"), and your God, the resplendent Source of life and love.
The first eventually makes you depleted.
The second -- with God's blessing --- you love life, your lovemaking is lifemaking, and you have life more abundantly.
Just thinking these thoughts.