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.
Eczema vs Dermatitis. Eczema is also known as dermatitis. It is the same thing. Sometimes eczema refers to chronic skin inflammation while dermatitis refers to an acute attack. But then, chronic dermatitis would be synonymous with eczema. Therefore, it is important to remember that clinically both are the same, and they are classified together.
Article Sections. Seborrheic dermatitis is a chronic inflammatory disorder affecting areas of the head and trunk where sebaceous glands are most prominent. Lipophilic yeasts of the Malassezia genus, as well as genetic, environmental and general health factors, contribute to this disorder.