Low T - you can't escape hearing about low testosterone these days. Ads are on television and the radio constantly, asking about symptoms such as fatigue, low energy, low sex drive, depression and weight gain. All of these symptoms can signal a problem in testosterone levels - or could simply signal that you are getting older. At least that is what some doctors are concerned about - that we are treating symptoms of the natural aging process with testosterone.
Hypogonadism is a medical condition in which the testes don't produce androgen, sperm or both. It is the cause of low testosterone. According to USA Today, somewhere between 3 and 7 percent of men between the ages of 30 and 69 have hypogonadism.
Testosterone production is highest in the teen years and during the 20s. After that, the male body naturally reduces testosterone production, at the rate of about 1 percent a year beginning at age 30. Normal levels of testosterone vary widely, anywhere from 300 to 1,200 nanograms per deciliter, making it difficult for a consensus on what constitutes Low T. Read more on healthcentral.