Prevention of kidney stones may include a combination of lifestyle changes and medications. Lifestyle changes. You may reduce your risk of kidney stones if you: Drink water throughout the day. For people with a history of kidney stones, doctors usually recommend passing about 2.6 quarts (2.5 liters) of urine a day.
Melanin is the pigment that gives your skin its color, and it is produced in specialized skin cells called melanocytes. The darker your skin is, the more melanin these cells produce. They can be found deep in the epidermis, close to the basement membrane.
Basal cell carcinoma. This is not only the most common type of skin cancer, but the most common type of cancer in humans. About 8 out of 10 skin cancers are basal cell carcinomas (also called basal cell cancers).When seen under a microscope, the cells in these cancers look like cells in the lowest layer of the epidermis, called the basal cell layer. These cancers usually develop on sun-exposed areas, especially the head and neck.bout 8 out of 10 skin cancers are basal cell carcinomas (also called basal cell cancers). When seen under a microscope, the cells in these cancers look like cells in the lowest layer of the epidermis, called the basal cell layer. These cancers usually develop on sun-exposed areas, especially the head and neck.