Testosterone is a male hormone. Besides promoting libido it has other important functions such as maintaining forming bone,and and muscle mass regulating cholesterol and heart muscle. It may also help to improve the oxygen levels through the body as well as controlling blood glucose as well as strengthening the immune system. As males age, the pituitary gland produces less free testosterone while far more free testosterone is being transformed into estrogen which leads to a number of health complications. In this article, we are going to discuss the causes, symptoms, treatment and prevention of testosterone deficiency.

I. Causes
1. Aging
As we mentioned in the prior articles, human aging is the biological and pathological tasks that vary for every person which are controllable to some degree. Starting at age forty levels of testosterone begin to diminish. The amounts of the by product prolactin of testosterone of males increases, stimulating the generation of the enzyme 5 alpha reductase that causes the conversion of testosterone to gihydro-testosterones DHT thus triggering very low levels of testosterone.
2. DHEA deficiency
DHEA (dehydroepiandrosterone) is a material created by the adrenal gland. It is the precursor of the sex steroids estrogen and testosterone. DHEA has some male hormone effects as well as deficiency of DHEA plays a role in fatigue, poor concentration and reduced overall body functions.
3. Zinc
Zinc is an all natural aromatase enzyme inhibitor. It helps you to block the transformation of testosterone into surplus estrogen. Inadequate zinc levels block the pituitary gland Learn about (click for info) from releasing lutein and follicle stimulation of hormone which promotes the creation of testosterone.
4. Aromatase
Aromatase is an enzyme of the cytochrome P450 superfamily, whose purpose is to always aromatize androgen as well as make estrogen. As men age they create greater amounts of aromatase enzymes that cause the conversion of testosterone into estrogen leading to male hormone deficiency.
5. Liver disease
Harm to liver causes extra estrogen as well as sex hormone binding globulin causing lower amounts of testosterone.
6. Frequent sexual activity
Typical sexual activity enables you to improve the yang qi in the kidney according to Chinese herbalists (that will be the reason why many kings in Chinese history have some energy sources of sexual dysfunction). Regular sexual activity (more than once one day and every single day) will cause the depletion of yang qi causing very low levels of testosterone, sexual dysfunction and libido down the road days.