What Is Low Testosterone (Testosterone Deficiency)? Testosterone is the primary androgen — or male hormone — in your body. Low testosterone affects up to 39 percent of adult men in the US over the age ...

Matt Kaeberlein, a longevity researcher and CEO of Optispan, had symptoms of low testosterone. He got his levels tested in his 50s and gradually began testosterone replacement therapy (TRT). He said ...

Junig is triple board-certified in psychiatry, addiction medicine, and anesthesiology. Last year, I joined the millions of American men now on testosterone therapy — a treatment whose use has quietly ...

From boosting testosterone and strengthening bones, here's how you can defy ageing for longer.

Certain health conditions can make it difficult for some men to have normal levels of testosterone. Low testosterone levels, also known as hypogonadism, can affect a person’s life, can cause different ...

Cholesterol often gets a bad reputation, but the story is more nuanced than “cholesterol = bad.” Sure, too much LDL cholesterol in your blood can be harmful for your heart, but the cholesterol your ...

Testosterone is one of the few hormones that’s broken out of biology textbooks and into the popular consciousness. For years it has been a shorthand for all things stereotypically male—ever notice how ...