Cardiology

EMS training on key skills improves heart attack survival

Emergency medical services (EMS) agencies that adopt four or more critical best practices have higher rates of survival among cardiac arrest patients than their peers, finds a nationwide study co-led by a UT Southwestern ...

Oncology & Cancer

Mental health screenings urged for men with prostate cancer

Mental health screenings must be incorporated into routine prostate cancer diagnoses say University of South Australia researchers. The call follows new research in Psycho-Oncology that shows men need more support both during ...

Biomedical technology

Wound healing checked in real time with electronic suture

A research team has successfully developed an electronic suture that can monitor changes in inflammation levels around wounds in real time. The electronic suture is expected to contribute significantly to wound care and personalized ...

page 1 from 2

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.

This text uses material from Wikipedia, licensed under CC BY-SA