A cne is often blamed on intake of greasy foods or

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A cne is often blamed on intake of greasy foods or chocolate, but according to researchers at the National Institutes of Health, foods have little to do with the cause of acne for most people. Doctors believe hormonal changes during puberty may be an important factor in the development of acne. Dermatologists specialize in skin problems and treat severe cases of acne. They may recommend over-the- counter medicines, prescription medicines, and sometimes antibiotics to treat moderate to severe acne problems.
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Your Hair xcept for the palms of your hands and the soles of your feet, you E have hair on almost every skin surface. You have between 100,000 to 200,000 hairs on your head alone! Although hair itself is composed of dead cells that contain keratin, living cells in the epidermis make new hairs and cause hair growth. A is a structure that surrounds the root of a hair. Hair helps protect the skin, especially the scalp, from exposure to UV radiation. The eyes are protected from dust or other particles by the eye- brows and eyelashes. Hair also reduces the amount of heat lost through the skin of the scalp. The foundation of healthy hair is a well-balanced diet. Hair can become thin and dry without proper nutrients. Regular shampooing is a must to keep your hair healthy. Daily brushing keeps dirt from building up and helps distribute the natural hair oils evenly. Limit the use of treatments such as permanents, dyes, or bleach. Overexposure to these harsh chemicals can cause hair to become dry and brittle. Hair Problems Normally, oil produced by sebaceous glands protects the skin from drying out and keeps hair soft and shiny. is a condition that can occur if the scalp becomes too dry and dead skin cells are shed as sticky, white Dandruff hair follicle 365 Lesson 1 Healthy Skin, Hair, and Nails T HE ABCD S OF M ELANOMA Regularly checking the appearance of your moles for warning signs is important for the early detection of melanoma. A = Asymmetry An imaginary line drawn through the center of the mole does not produce matching halves. B = Border irregularity Noncancerous moles have smooth edges. Suspect moles often have irregular edges. C = Color Look for moles that are intensely black, possibly with a bluish tint, or that have an uneven color. D = Diameter Check for moles that are wider across than a pea. Give your hair daily attention to keep it clean and healthy. How do you choose hair care products that are right for your hair? A B C D
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flakes . Dandruff can usually be treated by washing hair with an over-the-counter dandruff shampoo. If itching or scaling persists, consult a health care professional. Head lice are tiny parasitic insects that live in the scalp hair of humans. They feed on blood by biting through the skin of the scalp. Lice are transmitted mainly by head-to-head contact and can infect anyone. They can also be acquired by using objects such as combs or hats that have been used by an infected person. These insects can be eliminated by washing hair with a medicated sham- poo that kills the organisms. Washing sheets, pillowcases, combs,
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