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Dermal fillers are used in skin treatments. Visit HowStuffWorks to learn all about dermal fillers.

Lichen planus can be a bothersome condition. Visit HowStuffWorks to learn all about lichen planus.

Does stress really cause gray hair? Explore this article to find out where gray hair comes from and what role stress plays in its development.

Celiac disease is an autoimmune disorder -- more than just a food allergy to gluten. Read about celiac disease, symptoms and treatment.

Google Groups is a social networking site that has become very popular. Learn all about Google Groups at HowStuffWorks.

Collagen injections are an extremely popular skin treatment. Visit HowStuffWorks to learn all about collagen injections.

Is anti-aging cream worth the money, or is it an empty promise in fancy packaging? Learn about anti-aging cream at HowStuffWorks.

Traveling with your pet can be stressful, but these tips for flying with your pet can make the process easier. See 5 tips for flying with your pet.

Is circumcision necessary? Signs point to no, although there are valid reasons for circumcision. Learn why some think circumcision isn't necessary.

Crypton Super Fabric is specially designed for easy clean up and maintenance. Read more about Crypton Super Fabrics.

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