Although it is generally believed that 10% to 15% of the adult population suffers from chronic insomnia, and an additional 25% to 35% have transient or occasional insomnia, prevalence estimates vary because of inconsistent definitions and diagnostic criteria.
What is Seborrheic Dermatitis? Considered a chronic form of eczema, seborrheic dermatitis appears on the body where there are a lot of oil-producing (sebaceous) glands like the upper back, nose and scalp. The exact cause of seborrheic dermatitis is unknown, although genes and hormones play a role.
Eczema, or atopic dermatitis, can be long lasting with periodic flare ups before it subsides. In many cases, atopic dermatitis is accompanied by allergies and or asthma. There are also several types of eczema which can affect different areas of the body. Some of these types include contact eczema, allergic contact dermatitis, nummular dermatitis, dyshidrotic eczema and several other types. Although eczema is a common skin problem, no cure has been found for it.