Overweight & Obesity

New reports provide guidance for obesity care

Advocates for obesity prevention and treatment have designed two new resources for medical educators, healthcare providers and community programs that will enhance the level of care for patients, according to two new studies ...

HIV & AIDS

Newly discovered immune cells at the frontline of HIV infection

Researchers at The Westmead Institute for Medical Research have discovered brand new immune cells that are at the frontline of HIV infection. Known as CD11c+ dendritic cells, these new cells are more susceptible to HIV infection ...

Medications

The safer way to ease post-surgical pain

(HealthDay)—For people recovering from surgery or dealing with a painful injury, an expert suggests that there are a number of safer alternatives for managing pain than using potentially addictive opioids.

Health

French economists make case for legal marijuana

A group of French economists on Thursday recommended legalising marijuana, arguing it would add billions to state coffers, but President Emmanuel Macron's government again ruled out letting recreational users get legally ...

Health

Why do people faint?

Maybe it's a bride standing in a hot chapel, or an exhausted runner after a race. It could be someone watching a medical procedure on television or a donor at a blood drive.

Psychology & Psychiatry

How to train your brain to lucid dream

Dreams can often be confusing and blurry experiences. Reduced critical thinking, little to no access to our true memories and heightened impulsivity and emotions during normal dream states often make for head-scratching moments ...

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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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