In this article. Body dysmorphic disorder (BDD) is a distinct mental disorder in which a person has symptoms of a medical illness, but the symptoms cannot be fully explained by an actual physical disorder. People with BDD are preoccupied with an imagined physical defect or a minor defect that others often cannot see.DD is a chronic (long-term) disorder that affects men and women equally. It usually begins during the teen years or early adulthood. The most common areas of concern for people with BDD include: 1  Skin imperfections: These include wrinkles, scars, acne, and blemishes.
Four standard time zones for the continental United States were introduced at noon on November 18, 1883, when the telegraph lines transmitted time signals to all major cities.
Time Zones in the contiguous United States. Of these nine-time zones, four are in the contiguous United States, which comprises the 48 adjoining states. The Mountain Standard Time Zone is prevalent in the states that are a part of the Rocky Mountains. The states in this time zone are Colorado, New Mexico, Utah, Arizona, Montana, Wyoming, Texas, North Dakota, South Dakota, Nebraska, Idaho, Kansas. The Eastern standard time zone roughly includes the states that are located on the Atlantic Coast.