Some men want sex all the time; some don't. Some women want sex all the time; some don't. And there are myriad reasons why each gender may not be interested, and many reasons this desire may be fluid over time.
We believe there is really no mystery here. When we go away, we manufacture the ingredients that make sex work. These same ingredients can work at home if we know what they are and build them into our lives. Here are some crucial ones.
Prescription testosterone is unnecessary and dangerous for women and children, not just most men. Very few medical prescriptions given to a man affect a female partner and family so intimately and affect desired intimacy and passion in just the wrong way.
I would recommend using cortisol saliva testing if you need to figure out the severity of adrenal fatigue, but leave the other hormone testing to your serum tests, where the studies support more consistency to the results so that you get more for the money you are paying for your health.
Although it appears that we may be more physically primed for sexual pleasures when young, there is great scope for a sexual renaissance. Sexual prime, then, is the result of "sexiness." And that, can peak at any age.