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Glossary D-DZ

 

DEHYDRATION

Dehydration is an excessive loss of body fluid. There are three main types of dehydration: hypotonic (primarily a loss of electrolytes, sodium in particular), hypertonic (primarily a loss of water), and isotonic (equal loss of water and electrolytes). In humans, the most commonly seen type of dehydration by far is isotonic dehydration  but distinction of isotonic from hypotonic or hypertonic dehydration may be important when treating people who become dehydrated. Physiologically, it is important to understand that dehydration, despite the name, does not simply mean loss of water, as water and solutes (mainly sodium) are usually lost in roughly equal quantities to how they exist in blood plasma.

 

DEPRESSION

It's normal to feel sad sometimes, but if you feel that way for a long time, and you never feel happy, it's called depression. Sometimes, it's hard to figure out what's causing a person's depression. One thing's for sure, though: if you feel depressed, talk to a trusted person about it.

 

DETOXIFICATION

This is the process of removing toxins from the body. The liver, kidneys and other organs of elimination break down harmful substances in the body, such as toxins, drugs, and waste products, to render them harmless and eliminate them from the body.

 

DHEA

Dehydroepiandrosterone (DHEA) is a steroid hormone that's produced by the adrenal glands. The body converts DHEA to male and female sex hormones, such as estrogen and testosterone.

DHEA levels typically peak by the time people are in their 20s and decline with age, which is why there has been considerable interest in DHEA and its role in aging. In fact, DHEA supplements have been touted as an anti-aging hormone because lower levels of DHEA have been reported in some people with type 2 diabetes, breast cancer, heart disease, osteoporosis, AIDS, adrenal insufficiency, kidney disease and anorexia. Certain medications may also deplete DHEA, such as corticosteroids, insulin, opiates and danazol.

DHEA is manufactured naturally in the body, but DHEA supplements can also be made in a laboratory from a substance called diosgenin, found in soybeans and wild yam. Wild yam cream and supplements are often promoted as being a natural source of DHEA, but the body can't convert wild yam to DHEA on its own -- the conversion must be done in a laboratory.

 

DIABETES

Diabetes mellitus is sometimes called "sugar diabetes." When someone has diabetes, his or her body doesn't use glucose properly. Glucose, a sugar, is the main source of energy for the body. Glucose levels are controlled by a hormone called insulin, which is made in the pancreas. In diabetes, the pancreas does not make enough insulin(type 1 diabetes) or the body can't respond normally to the insulin that is made (type 2 diabetes). If diabetes is not under control - or a person doesn't know he or she has diabetes - the person may have problems like increased urination, extreme thirst, and unexplained weight loss.

 

DYSBIOSIS

Dysbiosis is the condition of having microbial imbalances on or within the body. Dysbiosis is most prominent in the digestive tract or on the skin, but can also occur on any exposed surface or mucous membrane such as the vagina, lungs, nose, sinuses, ears, nails, or eyes.

 

DYSLEXIA

Dyslexia is the name given to a learning problem some children have with reading and writing. It can make words look jumbled and make it difficult to read and remember what was read. It can actually be due to the child having a misunderstood word or even an allergy.

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