Overweight & Obesity

160 million years of life lost to obesity in 2019

Researchers at the National University in Singapore and colleagues in the US and China undertook a two-decade metabolic analysis of Global Burden of Disease (GBD) reports. They have published their findings in the journal ...

Health

Pandemic drinking hit middle-aged women hardest, study finds

Middle-aged women experienced increases in alcohol-related health complications during the COVID-19 pandemic, according to new research led by a University of Pittsburgh physician-scientist and published today in JAMA Health ...

Genetics

A deep dive into the genetics of alcohol consumption

A research group centered at the University of California San Diego School of Medicine has drilled deep into a dataset of over 3 million individuals compiled by the direct-to-consumer genetics company 23andMe, Inc., and found ...

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Alcohol

In chemistry, an alcohol is any organic compound in which a hydroxyl group (-OH) is bound to a carbon atom of an alkyl or substituted alkyl group. The general formula for a simple acyclic alcohol is CnH2n+1OH. In common terms, the word alcohol refers to ethanol, the type of alcohol found in alcoholic beverages.

Ethanol is a colorless, volatile liquid with a mild odor which can be obtained by the fermentation of sugars. (Industrially, it is more commonly obtained by ethylene hydration—the reaction of ethylene with water in the presence of phosphoric acid.) Ethanol is the most widely used depressant in the world, and has been for thousands of years. This sense underlies the term alcoholism (addiction to alcohol).

Other alcohols are usually described with a clarifying adjective, as in isopropyl alcohol (propan-2-ol) or wood alcohol (methyl alcohol, or methanol). The suffix -ol appears in the IUPAC chemical name of all alcohols.[citation needed]

There are three major subsets of alcohols: primary (1°), secondary (2°) and tertiary (3°), based upon the number of carbon atoms the C-OH group's carbon (shown in red) is bonded to. Ethanol is a simple 'primary' alcohol. The simplest secondary alcohol is isopropyl alcohol (propan-2-ol), and a simple tertiary alcohol is tert-butyl alcohol (2-methylpropan-2-ol).

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