Testosterone is produced in the testes (gonads, balls, testicles) from progesterone and other precursors (androgen, DHEA, etc.) which are all products of cholesterol. (See diagram below). For this reason they are all called "sterols". When signaled by the pituitary gland in the brain via luteinizing hormone (LH), the testes, in the presence of adequate precursors, produce Testosterone.

Healthy young and middle-aged adults usually secrete about 5 to 25 micrograms of melatonin each night - at least 80 times less than is in the commonly sold 2 milligram (mg.) tablet or capsule. The amount of melatonin the body secretes tends to decline with age, a possible link with an age-related rise in difficulty sleeping. See similar questions...

Cortisol is a stress hormone. Your body produces cortisol in response to stress, physical, mental or emotional. This can include extremely low calorie diets, intense training, high volume training, lack of quality sleep as well as common daily stresses such as job pressures, fights with your spouse or being caught in a traffic jam. See similar questions...

Both males and females produce testosterone (T) and Estrogen (E) naturally. However the amount of T and E produced varies between the two sexes. In this post I'll emphasize on the production of T in males [sorry ladies :)] which goes like this: When T level in the body falls bellow a certain set-point (set-point varies between individuals) the hypothalamus is stimulated to produce Gonadotropin Releasing Hormone GnRH). See similar questions...

Mother Nature has not abandoned us nor made a mistake with our generation. Our foods, drugs, environmental pollutants and profit driven medical industries have brought on many of our ills. Progesterone deficiency, more specifically estrogen dominance (as Dr. Lee refers to it) is an unfortunate condition of industrialized countries. Since 1948 over 70,000 new made-made chemicals have been introduced into our environment, less than 3% have even been tested for toxicity. See similar questions...

The effect produced by the applicator-roller is equal to that produced by the applicator-plate, but the result is achieved much quicker. Besides, with the roller you can reach any place of the body. It is possible to work up the whole body with the roller for 2-3 minutes: the body will "burn", you will have "needle shower" consisting of a few millions of pricks. Using the roller, it is possible to warm the whole family after supercooling in 10 minutes. See similar questions...

Testosterone is life saving for AIDS patients suffering with AIDS wasting syndrome (AWS) in both men and women. Testosterone increases appetite, stimulates immune system and helps pack on muscular tissue. These medical uses of Testosterone to stimulate red blood cell production, improve immune system function and increase the appetite and ability to gain weight are most effective in these patients. Other uses include the stimulation of protein build up in major traumas such as burns and cancer. See similar questions...

The amount of electricity produced by the Acuscope is measured in microamps (millionths of an amp), an extremely tiny amount of current in comparison to the amount of electricity flowing from a wall socket. It has been scientifically proven that this level of current produces the most beneficial effect on the body's cells. See similar questions...

Just clean air. The Austin Air Cleaner does NOT produce OZONE, IONS, or NEGATIVE IONS. Ozone is active Oxygen and can be dangerous to people with respiratory problems, such as asthma and emphysema. Periodic vacumming of the four sides on the outside screen is the only maintenance required for the Austin Air Cleaner. Typically, the filter only needs to be changed every five years. See similar questions...

It produces XHTML compatible with the XHTML 1.0 specification. A cascading stylesheet is required for proper viewing with a modern graphical browser. Correct rendering of the HTML produced depends on the CSS support of the browser. A general-purpose stylesheet, html4css1.css is provided with the code, and is embedded by default. It is installed in the "writers/html4css1/" subdirectory within the Docutils package. See similar questions...

Some forms of testosterone replacement such as injections of long acting synthetic testosterone derivatives will virtually stop an individual's own testosterone production at the same time causing severe testicular atrophy that, after as short a time as six months, is only partially reversible. However, daily cream administration of testosterone will cause only partial suppression of the testicular production, which is reversible on cessation of treatment. See similar questions...

Following a vasectomy, the testicles will decrease the number of sperm that they produce. Second, the body will increase the process of sperm breakdown and reabsorption. Over a period of time, the equilibrium between sperm production and sperm reabsorption is fine tuned. See similar questions...

Moderate exposure to sunlight is the only way to help the body manufacture the vitamin D it needs. While eating salmon or mackerel and drinking fortified milk or juices is a step in the right direction, it is practically impossible to consume enough of these products each day to obtain the required amount of vitamin D through diet alone. See similar questions...

There is a small increase in the amount of testosterone in the serum, because a small fraction of it is not being converted to dihydrotestosterone. On the average, the increase in the testosterone level is 10 to 20%. For most patients, the level is still within normal limits and is regulated by the feedback mechanism with the pituitary gland. Rare cases of 'reflex hyperandrogenicity' have been reported with increased body hair and oily skin. See similar questions...

Nicotine is processed very quickly- it will exit your body within a day of its consumption. However, this rapid metabolism also causes nicotine withdrawal symptoms to start the day you quit. Fortunately, these symptoms can be controlled with nicotine replacement therapy or will resolve on their own within a week. See similar questions...

The endocrine system stimulates all of the systems and organs in your body. The hormones produced by this system amongst many other benefits increases your metabolism, helping to break down fat, build proteins, and create lean muscle. Because it affects almost all of the different systems of the body, it is this body system that we refer to as the "fountain of youth system" due to its youth-promoting benefits when optimally functioning. Consider it the body's "master bodily system. See similar questions...

Too much lead can harm both children and adults. No one knows exactly how much lead it takes to cause health problems. Many times there are no symptoms until the health problems are very serious. Usually people who are lead poisoned do not seem to be sick. Lead poisoning can cause learning, behavior and health problems in young children. Lead can cause high blood pressure and kidney damage in adults. See similar questions...

Moderate loss in IQ; hyperactivity; poor attention span; difficulty learning; language and speech problems; slower reflexes Poor bone and muscle development; clumsiness; lack of coordination; early anemia; fewer red blood cells to carry oxygen and iron; tiredness; drowsiness Anemia; nerve damage; constipation; stomach pains; irritability and fatigue; memory and concentration problems; clumsiness; drowsiness and sleep problems Blue line on gums; uncontrollable shaking of hands; wrist and foot dro. See similar questions...