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21 Topic Pages Found in Health and starting with the letter D
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business of producing, processing, and distributing milk and milk products. Ninety percent of the world's milk is obtained from cows; the remainder

daylight-saving time

(DST), time observed when clocks and other timepieces are set ahead so that the sun will rise and set later in the day as measured by civil time . The

Decompression sickness

physiological disorder caused by a rapid decrease in atmospheric pressure, resulting in the release of nitrogen bubbles into the body tissues. It is

Open Dementia

An acquired and irreversible deterioration in intellectual function. Around 10 per cent of people aged over 65 and 20 per cent of those aged 75 or

Open Dentition

kind, number, and arrangement of the teeth of humans and other animals. During the course of evolution, teeth were derived from bony body scales

Open Depression

Depression is a word that is regularly misused. Most people experience days or weeks when they feel low and fed up (feelings that may recur), but


Dermatitis is a general term used to describe the features of several skin conditions linked by the clinical finding of inflammation in the epidermis

Open Diabetes

Diabetes mellitus, often referred to simply as diabetes, is not a single disease but a group of metabolic disorders characterized by hyperglycemia


This year, over one billion people around the world will suffer from diarrhea. The disease is particularly prevalent in the developing world, where a

Open Diet

The mixture of food and drink consumed by an individual. Variations in morbidity and mortality between population groups are believed to be due, in