The skin is often known as "the largest organ in the human body". This applies to exterior surface, as it covers the body, appearing to have the largest surface area of all the organs. Moreover, it applies to weight, as it weighs more than any single internal organ, accounting for about 15 percent of body weight. For the average adult human, the skin has a surface area of between 1.5-2.0 square metres, most of it is between 2-3 mm thick. The average square inch of skin holds 650 sweat glands, 20 blood vessels, 1000 melanocytes, and more than a thousand nerve endings. The skin on a person's face is seen by people that person interacts with. For some people, therefore, facial skin care is of particular importance, and they often use cosmetics to deal with the appearance of the face and condition of the skin, such as those for pore control and black head cleansing. Blood capillaries are found beneath the epidermis, and are linked to an arteriole and a venule. Arterial shunt vessels may bypass the network in ears, the nose and fingertips. The main cell types of skin are fibroblasts, adipocytes (fat storage) and macrophages. Sebaceous glands are exocrine glands which produce sebum, a mixture of lipids and waxy substances: lubrication, water-proofing, softening and antibactericidal actions are among the many functions of sebum. Sweat glands open up via a duct onto the skin by a pore. Functions of the skin are disturbed when it is dirty and it becomes more easily damaged. The release of antibacterial compounds decreases. Dirty skin is more prone to develop infections. Cosmetics should be used carefully because these may cause allergic reactions. Each season requires suitable clothing in order to facilitate the evaporation of the sweat. Sunlight, water and air play an important role in keeping the skin healthy.
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The chief difference in womens androgenic hair loss from mens (both are hormone related) is that women tend to experience thinning that occurs in no particular pattern or part of the scalp. Unlike men, the scalp may not actually be totally denuded of hair, just thin to the point where the scalp is visible. Like men, however, the resulting hair loss is generally irreversible. The effectiveness of medications used to treat alopecia depends on the cause of hair loss, extent of the loss and individual response. Generally, treatment is less effective for more extensive cases of hair loss. Hair transplantation is done under local anesthesia as an outpatient procedure. Hair and follicles are removed from the "donor area" of permanent hair along the back and sides of the head. This area is immediately camouflaged by the surrounding hair. The hair is your own, and just like all of your hair it grows, can be washed, curled, cleaned, permed and styled as desired. Once the transplants are completed, no special maintenance is required. Almost worse than hair loss in some cases is hair miniaturization-the fine-caliber, wispy hair that grows out a follicle when the follicle is no longer able to produce hair of normal size. Miniaturized hair is hard to style and difficult to conceal. It begins to appear in the course of female pattern hair loss, the female form of the most common type of hair loss in men.
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Sexual difficulties can begin early in a person's sex life or they may develop after an individual has previously experienced enjoyable and satisfying sex. A problem may develop gradually over time, or may occur suddenly as a total or partial inability to participate in one or more stages of the sexual act. The causes of sexual difficulties can be physical, psychological, or both. The best way for men to begin solving erectile problems is by reading about men's sexual system - anatomy, physiology, diseases, drugs, diagnosis and treatments. Some problems may be solved simply and others may require a visit to your family doctor or a urologist. In either case, we encourage you to become an educated health care consumer, which should help you regardless of the cause or cure for your problem. In order to increase the size of an erection, there must be an increase in blood flow and, at the same time, the blood has to be prevented from leaving the penis. Many medications cause problems with sexual function, including drugs for high blood pressure, depression, heart disease and prostate cancer. Men who do not benefit from medical or psychological treatment often have success with mechanical or prosthetic devices. External products, known as vacuum erection devices, are safe and highly effective, but many men and their partners find them unappealing. Another option is a surgically placed penile implant. However, because implants require surgery (with the risk of surgical complications), only 10 percent of men with erectile dysfunction choose this option. Vascular (blood vessel) surgery sometimes is recommended for young, healthy men who develop impotence after trauma to the groin.
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