COLUMN. A German team discovered that some males don't produce testosterone but instead breaks it down, making this bird a ...

Male ruffs have the ability to eliminate excess sex hormones from their bloodstream. We often associate high testosterone ...

Study found that there was no significant positive relationship between daily changes in testosterone levels and daily ...

They typically contain a blend of natural ingredients, such as herbs and vitamins, that have been shown to support healthy testosterone levels. While there are many different types of testosterone ...

The correct approach to purchasing testosterone in the USA requires careful analysis and attention to detail, here are the 3 best brands of testosterone for sale.

Estrogen is important to men’s health. However, testosterone therapy can also increase estradiol, a type of estrogen, to levels that, in men, can cause water retention, mood changes and the ...

A single gene that regulates testosterone levels in a 'crazy' species of shore bird controls the development of three wildly different types of males, a new study has found.

Testosterone therapy nearly halves mortality in men with Klinefelter syndrome, highlighting the need for early diagnosis and ...