Sperm is made by a complex hormonally regulated process that involves both rounds of cell division to produce identical clones and genetic rearrangement and duplication to produce genetically unique cells capable of fertilizing an egg.
Tongkat ali, also known as eurycoma longifolia jack, is shrub-like plant that grows in parts of southeast Asia. The plant isn't primarily popular for landscaping uses, however, but is instead prized as an herbal supplement. The effects of this...
The mature male reproductive system performs two critical roles: producing steroid hormones-primarily testosterone-and manufacturing the male gametes, sperm, and their surrounding fluid, semen. Steroid hormones support sperm production, or...
Testosterone is an androgen, or male hormone. It's produced by the testes in response to hormones produced in and secreted by the brain, and is responsible for male sexual characteristics, appearance and behaviors. Though the hormone is made by...
Fertility is complex for both men and women. A lot of components must align for a man to impregnate a woman. A number of things can disrupt this alignment, leading to issues with fertility. Health problems and medical treatments are known to cause...
Responsible for numerous functions in the body, including sex drive and sperm production, testosterone is a predominantly male hormone that is necessary for proper health. Testosterone is associated with muscle and strength as well as the...
Sperm is made up of sperm cells suspended in fluid called semen. Sperm is produced, stored and released by a group of tissues that make up the male reproductive system. Sperm is released by a process, called ejaculation, during sexual intercourse....
Men often take fertility for granted, yet male infertility is the cause in about 50 percent of couples who are unable to conceive a child, even after frequent intercourse for more than one year. Junk food contributes to risks of infertility. Junk...
The adrenal glands and testes of males release testosterone into the bloodstream. This natural steroid contributes to several biological and psychological processes. As men age, their testosterone production decreases causing a hormonal...
Testosterone is a sex hormone that stimulates the production of secondary male sex characteristics such as hair growth, muscle mass and a deep voice. In addition, testosterone is responsible for the libido and the maintenance of muscle mass. A few...
The dry heat of a sauna can range from 158 degrees to 194 degrees F. The resultant sweating provides users with feelings of relaxation, tranquility and mental well-being, according to research published on the PsychSymposium.com website. However,...
While acne medications can cause many side efffects, sterility has not been proven to be one of them, according to dermatologists and scientists. Some drugs have been associated with a decrease in sperm count and motility in animal studies, while...
Cholesterol and testosterone are related compounds that perform essential functions in your body. Your body is able to synthesize cholesterol from dietary fats and obtain it in the diet. In addition to its role in metabolism, cholesterol serves as...
Sperm are created in the testes, also called testicles, the male sex glands found in the scrotum, the sac-like bags of skin on either side of the penis. Testicles hang outside the body because sperm need to be kept 1.5 to 2.5 degrees Celsius...
Estrogen is one of the main sex hormones in the body. It is mainly produced by the ovaries, but can be produced in men and women by other tissues like fat (adipose) tissue, the brain and the reproductive organs. There are receptors for estrogen on...
Testosterone is primarily a male hormone that plays a crucial role in the development of secondary sex characteristics, muscle growth and libido. It normally starts to drop after age 30 years. Besides testosterone therapy treatment, research...
Cultivated in high altitudes in the mountainous regions of Peru, maca has been used for centuries by the natives for energy, libido, stamina and fertility. Although all varieties of maca basically provide the same health benefits, they each...
Epitestosterone is a chemical within the body which is used as a marker of good sperm production in men, according to a study published in 1996 by the "Journal of Clinical Endocrinology and Metabolism." It is normally present in the bodies of...
Causes of fertility problems appear to be split fairly evenly between female and male issues. Fertility is related to overall health, and the key to conception is to seek moderation and balance throughout your lifestyle. Some men make running a...
Found in both females and males, but predominantly in adult males, the hormone testosterone is vital for overall health and sexuality. It not only boosts muscle strength and mass, but it also increases sex drive. Although testosterone supplements...
Hormones regulate many important bodily functions. For instance, The Merck Manuals Online Medical Library reports that the delicate interaction between estrogen and progesterone, along with the pituitary and hypothalamic hormones, is essential for...
Found in both men and women, testosterone is commonly referred to as a male hormone and is responsible for the development of secondary male sexual characteristics, including body hair, deepening of voice and libido. After the age of 30,...
According to the Mayo Clinic, low sperm count is a common cause of infertility in men. While some causes of male infertility are irreversible, others can be alleviated through the use of lifestyle adjustments, including a healthy diet. Several...
Chemotherapy is the use of chemical agents--drugs--to target and kill the rapidly dividing cells of cancer. These medications are highly effective on cancer cells but also affect normal cells, especially the rapidly dividing cells of the...
Low sperm count and deformed sperm are two common causes of infertility in men, MayoClinic.com reports. Like many areas of the body, your reproductive system requires a steady stream of vitamins, minerals and other nutrients to function at its...
Proper nutrition is essential for health, and a deficiency of one or more nutrients will have a negative impact on the body's function. A number of vitamins are particularly important for male virility, which comprises vigor and reproductive...
Testosterone is primarily a male steroid hormone that performs numerous functions in the body, including stimulating sperm production and controlling sex drive. After the age of 30, testosterone levels naturally start to decline. Although...
At least 25 percent of your sperm should be vigorous swimmers, NetDoctor.co.uk reports. Inadequate sperm motility can be an underlying cause of infertility in men. If you're having issues with fertility, check with your doctor to see what...
Human chorionic gonadotropin, called hCG for short, is a hormone used by bodybuilders to improve results during anabolic-androgenic steroid use. The hormone is produced by the placenta of a pregnant female and is essential for healthy pregnancy in...
