I agree with you and understand that thyroid function obviously correlates to hormonal function of the entire body, but I just never equated increasing your thyroid hormone to getting a rock solid hard on.
I.e. If my testosterone levels are normal and I throw a test into the supplement regimen I am going to go from being at a normal libido level to a level where I will want to stick it in anything. If I have normal thyroid levels and I throw extra thyroid hormone into the mix; are you saying that I will get the same results that I would get from having excessive testosterone?
So, I understand your point of keeping your levels at an optimal range, I am more curious about your opinion regarding an excessive range.
The thing is extra testosterone doesnt always equate to increased libido, plenty of posts on these forums of people on a test cycle with E under control and have low libido.
Its a complex interconnected system that isnt fully understood and I would wager libido is about a lot more than just test levels. There are plenty of posts about guys with clinically low test and no libido issues also.
So with that in mind, what I am saying is that I believe seeking to optimize your particular levels (of all hormones) is the best place to start and only after doing so, if needed add in a little of the proper hormone.
The key is the supplementation, its more than just about nutrition, its about overcoming daily toxic loads and oxidative stress which consumes nutrients which is what most people just dont seem to understand.
For example, the FDA claims we humans only need 60mg vitamin C per day however if you contract a virus or cold your immune system will steal electrons from nutrients, vitamin C being a major source, so that it can fight off infection. When that happens it leaves you deficient. The same holds true for toxins and many of us older guys have at least an amalgum filling or two which is loaded with mercury, bombarding us daily with loads of toxins that need to be neutralized.
Certain tissues in the body have an affinity for certain nutrients, sex organs, thyroid etc all have high requirements for iodine for example, many many times higher than the FDA amount. By the time most of us get into our fourties our bodies have been soaking up toxins for 4 decades and are majorly depleted in many nutrients. The body tries to prioritize and ration the what little nutrients it does get to most important systems while less important systems suffer.
The body is not going to be concerned with procreation when its fighting for survival. When all the tissues in the body are running on fumes so to speak it would make sense you have a loss of libido. So, what we have is a case where one persons body is borderline. They are deficient enough to have various symptoms of various low hormone levels but not so deficient that their body is only supporting crucial systems. For those a little thyroid hormone or sex hormone can be enough of a boost ti kick libido into gear. For other with more pronounced deficiencies simply adding in a little of this hormone or that isnt enough to trigger the body into activating unnecessary functions.
At the end of the day in order to get everything working optimally for your age you need to give it the nutrients to first overcome your daily toxic load, oxidative stress and daily repaire functions then enough additional to nourish the tissue.