Low Testosterone Could Caused Genes

There are many things a father to his son inherited. A study states, one thing that may be passed on to sons are genes that affect testosterone levels.

The experts from Stanford University recently did some research to compare 4600 testosterone levels in men. Analyses revealed that at least there are two types of genetic variants that may affect male sexual hormone changes, especially those that cause low testosterone levels.

Nevertheless, the researchers say, this is nothing to be feared by the Adam. Because, although the levels of total testosterone in the body low, a guy actually only going to use "free testosterone" in the blood, which number only about one percent only.

While about 99 percent of testosterone in the body governed by a protein called sex hormone binding globulin (SHBG). Genes found these experts show low SHBG production and SHBG weaker version, which actually produce more free testosterone.

In theory, adequate for the needs of free testosterone, total testosterone values ​​will be relatively low. However, although the body has sufficient free testosterone to trigger the sex drive and erection process, the value of low total testosterone is also associated with cardiovascular disease, metabolic syndrome, type 2 diabetes, and stroke.

"Whether this genetic variant SHBG responsible for an increased risk of certain diseases, need further research," said Neil Gesundheit, MD, professor of endocrinology at Stanford University.

Testosterone levels usually need to be checked if you experience a variety of related disorders such as sexual function, decreased desire, erectile dysfunction, fatigue, or breast growth. Your doctor will check your total testosterone levels, but because 1 in 30 men have the gene variant SHBG, you can also request the laboratory to check levels of free testosterone or "bioavailable testosterone" in order to become more accurate diagnosis.