Hormones Hormones are biochemical substances that are made in various glands throughout the body. These glands secrete their products directly into the bloodstream so that the chemical they make is spread throughout the body. These chemicals are very powerful; only minute amounts of them have profound effects upon the body. The major male sex hormone is called testosterone. Testosterone and other related hormones that have masculinizing effects are made primarily in the testicles, therefore, the hormonal levels that are seen in adults do not reached significant levels until the testicles develop and enlarge during puberty. In fact, these same hormones are the cause of many of the online propecia prescription stress alopecia changes that occur in puberty; change in the voice, growth of the beard and mustache, development of an adult aroma in the sweat, change in the muscular development, and change in the basic body shape. These same hormones that cause acne and beard growth can also signal the beginning of baldness. The presence of androgens; testosterone, and its related hormone DHT, cause some follicles to regress and die. In women, hormones with androgenic activity cause hair loss as well. In addition to the testicles, the adrenal glands located above each of our kidneys, produce androgenic hormones, and this would be similar in both sexes. In females, the ovaries menopause hair loss stress alopecia are an additional source of hormones that can affect hair. The specific relationship between testosterone and hormonally induced hair loss was discovered by a psychiatrist early in this century. At that time, castration was commonly performed on patients with certain types of mental illness. The rationale behind this procedure was that it was believed to be a treatment for mental illness at a time when there were no other forms of real treatment. Castration seemed to have a calming effect upon many patients and castration reduced the sex drive of patients who had no outlet for their desires. The doctor noted that the identical twin brother of one propecia uk stress alopecia patient was profoundly
