Surgery

Castration of men was based on knowledge of the female body

Many men know that benign prostate enlargement can affect their quality of life. The prostate, normally the size of a walnut, can swell up, causing pain and a need to urinate frequently. Today there is a range of treatment ...

Psychology & Psychiatry

Study finds new factors linked to suicide

First-of-its-kind study used machine learning and health data from the entire Danish population to create sex-specific suicide risk profiles, illuminating the complex mix of factors that may predict suicide.

Health

Could fish oil fight inflammation?

Plentiful in foods like fish and flaxseed, omega-3 fatty acids have long been linked with cardiovascular health, and new research is looking at the biology behind how it might work.

Diabetes

Why people buy, trade, donate medications on the black market

Altruism and a lack of access and affordability are three reasons why people with chronic illnesses are turning to the "black market" for medicines and supplies, new research shows. Scientists at University of Utah Health ...

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Drug

A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.

In pharmacology, a drug is "a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being." Drugs may be prescribed for a limited duration, or on a regular basis for chronic disorders.

Recreational drugs are chemical substances that affect the central nervous system, such as opioids or hallucinogens. They may be used for perceived beneficial effects on perception, consciousness, personality, and behavior. Some drugs can cause addiction and/or habituation.

Drugs are usually distinguished from endogenous biochemicals by being introduced from outside the organism.[citation needed] For example, insulin is a hormone that is synthesized in the body; it is called a hormone when it is synthesized by the pancreas inside the body, but if it is introduced into the body from outside, it is called a drug.[citation needed] Many natural substances, such as beers, wines, and psychoactive mushrooms, blur the line between food and recreational drugs, as when ingested they affect the functioning of both mind and body and some substances normally considered drugs such as DMT (Dimethyltryptamine) are actually produced by the human body in trace amounts.

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