Several conditions may cause increased testosterone levels in men. According to MayoClinic.com, testosterone is a hormone that is produced primarily in your testes, if you are male. For men, testosterone serves many important functions, including...
Testosterone therapy involves artificially increasing testosterone levels in men who have low testosterone levels due to advanced age, according to MayoClinic.com. The higher levels of testosterone may enhance dwindling mental acuity, elevate sex...
Symptoms of low testosterone levels in adult men may indicate male hypogonadism. This condition occurs when a man's body does not produce enough testosterone hormone. According to MayoClinic.com, adult men with low testosterone levels may...
Testosterone is a steroid hormone produced predominantly in the testes; it provides male characteristics. A 2006 article published in the "Medical Journal of Australia" refers to testosterone as one of the oldest drugs in medicine. The article...
Testosterone is a steroid produced in the pituitary gland that plays a role in fetal development, sperm production and development of secondary male sex characteristics. As you age, testosterone levels begin to decline. Although taking...
The sex steroid testosterone affects body and mind across the human lifespan. Most testosterone production occurs in the male testes and the female ovaries. The adrenal glands of both genders produces small amounts of testosterone as well....
According to the Mayo Clinic, the average male's testosterone level drops by one percent each year after the age of thirty. By the time you are 60 years old, your testosterone level has probably dropped about 30 percent. This drop may cause...
An important hormone in both males and females, testosterone affects body composition and sexual performance. Peaking during adolescence or early adulthood, testosterone levels begin to drop in men after the age of 30. Do your homework before...
Testosterone is commonly thought of as a male sex hormone, but it is actually found in both men and --- in small amounts --- in women. Testosterone affects many aspects of male health. Some men turn to supplementation with testosterone patches,...
Testosterone levels naturally decline with age and can lead to fatigue, reduced libido, weight gain, reduced muscle mass, restless sleep and an increased risk of osteoporosis and cardiovascular disease. In men, slight decreases in testosterone can...
Between the ages of 30 and 80 testosterone levels in men decline; levels can reach as low as 20 percent of what it was during a male's youth. A decrease in testosterone can lead to a number of illnesses such as heart disease and diabetes. There...
It's a lesser-known fact that some men go through a version of menopause, described on the Discovery Health website as "puberty in reverse." Also known as andropause, this phenomenon, which occurs between the ages of 40 and 55, is related to a...
Some of the changes your body experiences with aging occur due to a reduction in specific hormone levels. According to the Mayo Clinic, testosterone declines by about one percent a year after age 30. There can be other reasons why testosterone...
Testosterone is a male hormone that plays a role in the sexual development and characteristics of men. Testosterone is secreted by the testicles and adrenal glands. It is responsible for building muscle mass and bone density, fat distribution,...
Males need adequate levels of the hormone testosterone throughout development and adulthood to produce sperm and to maintain typical male characteristics. Testosterone levels vary widely at different points in development, and even in adult men,...
Testosterone is the hormone responsible for the development and maintenance of secondary sex characteristics in males. High levels of the hormone increase sexual desire as well as competitive and even aggressive behavior. Increasing testosterone...
Vitamin D is a fat-soluble vitamin that is responsible for numerous functions in the body, including calcium absorption, white blood cell production and blood pressure regulation. In addition, it might help boost levels of testosterone, a hormone...
Testosterone is a hormone produced in the testes of men and the ovaries of women. Testosterone levels in men are much higher than women, according to Medline Plus. In men, testosterone maintains bone density, muscle strength, sex drive and sperm...
Persistent high cholesterol levels cause heart disease. Hmg-coa reductase inhibitors, commonly known as statins, lower high cholesterol levels. As of 2010, several small studies have examined how statins affect testosterone levels in men, with...
Some 5 million men have low levels of the hormone testosterone, according to the National Institutes of Health, or NIH. Testosterone is necessary for muscle and bone strength, sperm production and sex drive. It also helps regulate fat distribution...
There are many different types of protein powders on the market and depending on your dietary preferences, you may choose a vegetable based protein powder if you are vegan or vegetarian or one made with whey. Some examples of protein powders...
The hormone testosterone governs several key activities within the human body. A man's fertility, muscle strength and sexual vitality are all directly linked to his testosterone levels. While most men produce adequate testosterone without any...
For most men, testosterone represents virility, masculinity and youth. Testosterone levels begin to decline for most men starting in their 20s and continue to decline steadily into middle age. This decrease in testosterone can lead to fatigue,...
The trace mineral zinc is essential for several functions in the body, including cell reproduction, immune function and protein synthesis. In addition, it is also needed for carbohydrate metabolism and insulin production. Research hints that zinc...
Testosterone is a hormone produced by the testes in men and, in smaller amounts, by the ovaries in women. There can be positive effects from slightly elevated testosterone levels in men, or there can be negative effect from testosterone levels...
Testosterone is considered a male hormone because, although it is present in women, it is found in much higher concentrations in men. Testosterone also tends to trigger heightened aggression and an increased sex drive in men. However, the presence...
Testosterone is often associated with weightlifting and large muscles, but individuals who are wishing to increase their testosterone levels should look to aerobic exercise training for improvements. While anaerobic training, such as...
Most men don't make a conscious decision to lower their testosterone levels. But despite this, testosterone decline is a natural part of life and growing older. This can be exacerbated by lifestyle choices that create factors lowering testosterone...
Throughout our lives, reproductive hormones play an important role in many bodily functions. But as we age beyond our peak childbearing years, estrogen levels in women and testosterone levels in men begin to decline, contributing to many of the...
