Don T, You must be short on comprehension. I said that the video link is NOT about homosexuality, one way or the other, but there was a segment on 'receptors' and what they do, and how they function. The fact that the video, was dealing with different subjects, related to the different speakers, on their various subjects, really has NO bearing on what they were talking about that was not related.
I do commend you, however, for at least watching the video. I think you may agree, that the segment on receptors was very illuminating....may even shed some light on the subject at hand...and that is 'receptors'.

GfS