You will get very clear idea on why all this war with cholesterol happened :-)

Note that issue is not with total testosterone, but mostly with free testosterone

Testosterone in long term relationships drops

Results revealed that men in committed, romantic relationships had 21% lower testosterone levels than men not involved in such relationships. Furthermore, the testosterone levels of married men and unmarried men who were involved in committed, romantic relationships did not differ, suggesting that, at least for this sample, male pair bonding status is the more significant predictor of testosterone levels than is marital status.

“The similarity in levels of testosterone between men in new relationships and single men suggests that men in new relationships are still in a physiological state that aids competition with other men for access to potential mates,” the study authors wrote in Evolutionary Psychology.

“This may be due to the need to maintain and develop their new relationship… However, an alternative explanation for these effects may be due to the direction of causality. In other words, it may be that men with higher baseline levels of testosterone are more likely to terminate their relationships before they become long-term due to their greater propensity to seek new partners.”

https://journals.sagepub.com/doi/10.1177/147470491501300116

Most amazing here is how clear 2008 is the turning point

It seems like we are observing issues with economy and inequality just shows that men are pressured hard by opposing sex to have better income, better car, better clothing, but they can't get all this and are rejected as result.

A 16-year study of US sperm donors shows that the quality of their "reproductive material" has been steadily declining, possibly due to increased chemical exposure and lifestyle changes.

https://www.newscientist.com/article/2294266-sperm-quality-has-been-declining-for-16-years-among-men-in-the-us/

Scientists examined over 170,000 analyzes carried out between 2005 and 2021. Everything from healthy men aged 19-38. And they found out that the quality of their germ cells during this time fell by at least a third. As a result, 10% more men can now be considered infertile.

And this is not a single analysis that showed such a result. A 1992 study found that the number of active sperm in men had decreased by 50% over the past 60 years. It was hard to believe in this, and in the following years several checks were carried out, which confirmed this sad result. Separately, it is worth citing a large publication in 2017 showing a 50-60% decrease in sperm concentration between 1973 and 2011 in men around the world. That is, the reproductive potential of the male half of the population has become two times less in just forty years.

https://doi.org/10.1289/ehp.00108961

https://doi.org/10.1093/humupd/dmx022

Already after a quarter of a century, people may lose the ability to procreate: most men by that time are at risk of losing viable spermatozoa. This was stated by the leading American specialist in reproductive health, Shanna Swan. The reason for this is widespread chemicals.

A few years ago, Swan estimated that since 1973, sperm counts in Westerners have fallen by almost 60%. Then it caused a wave of high-profile publications about the impending "spermageddon". Now the researcher paints an even bleaker picture: according to current projections, the number of germ cells in men will approach zero in 2045. This means that half of the representatives of the stronger sex will not be able to give offspring at all, and the other half will be very close to such a state.

According to Swan and other scientists, fertility problems are directly related to the so-called endocrine disruptors - chemicals that mimic the body's hormones and thus trick our cells. Compounds such as bisphenol A and phthalates interfere with the normal functioning of hormones, including testosterone and estrogen. They pose a particular danger even in small doses to the developing fetus. These chemicals are everywhere: in plastics, electronics, personal care products, cosmetics, canned foods, and even on grocery receipts. Phthalates, for example, are used in the manufacture of plastic water containers, and bisphenol A is used in the production of polycarbonate. A study conducted by French scientists confirmed the presence of bisphenol A in the urine of more than 90% of the world's population. And the German Federal Environment Agency found traces of it in the body of 591 out of 599 children examined.

Some of these substances do not break down either in the human body or in the environment. As a result, according to experts, each new generation is born with a lower level of fertility. “Today, the average 20-year-old girl is less fertile than her 35-year-old grandmother. For men, chemicals not only reduce sperm count, but also reduce the size of the penis. This is a serious threat to future generations and all of humanity as a whole,” says Swan.

There is still hope, however. In 2017, a study was conducted in which male mice were exposed to estrogenic chemicals shortly after birth, but were never exposed to them again. As a result, the sperm count in rodents was fully restored after three generations. “Of course, three generations for people is quite a long period. Therefore, it is better for us to hurry up and take some measures, ”the expert concluded.

@cls105

Remember - if possible it is always better to make it natural. Add physical activity, more sex, better girls around you.

TRT will lead to extreme drop of your natural testosterone production.