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.
1 In context\|anatomy\|lang=en terms the difference between hypodermis and dermis is that hypodermis is (anatomy) a subcutaneous layer of loose} DUPipeline_QISnippet_FirstGoodLong_Snippet_v1: {},{-1|-1|1|Hypodermis is a derived term of dermis.s that hypodermis is an epidermal layer of cells that secretes an overlying chitinous cuticle, as in arthropods while dermis is (anatomy) the tissue of the skin underlying the epidermis.