Caffeine

Caffeine is perhaps the world's most popular mood-altering drug. Found commonly in coffee and tea, it stimulates the central nervous system to make your body and mind feel more awake. Here's the latest science news on caffeine, including its effects on the body, and possible benefits and risks.

Related Topics: Alcohol, Happiness, Nervous System

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Coffee Tastes Bitter, So Why Do People Drink It?

November 15, 2018 | Article

It may sound counterintuitive, but people who are supersensitive to coffee's bitter taste actually drink more of it, a new study finds.
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No, Caffeine Doesn't Help You Lose Weight

July 19, 2018 | Article

Some diet supplements that contain caffeine claim that the compound helps reduce appetite. Does it?
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Do Coffee Drinkers Really Fall into 3 Groups?

June 08, 2018 | Article

A new report divides coffee lovers into three groups depending on how their bodies respond to caffeine, but does science really support this conclusion?
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Here's How Much Caffeine You Need, and When, for Peak Alertness

June 06, 2018 | Article

Caffeine can perk you up, but exactly how much caffeine should you consume – and when should you take it – to achieve "peak" alertness?
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What Would Happen If You Were to Drink Five 5-Hour Energy Drinks at Once?

June 01, 2018 | Article

Would you gain 25 hours of energy? Or would the consequences be more severe?
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Why Coffee Could Be the Opposite of Cannabis

March 15, 2018 | Article

Coffee acts on the same system in the body as marijuana does.
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Brewing Health Benefits: Hot Tea May Lower Glaucoma Risk

December 14, 2017 | Article

Hot tea may do more than warm your insides: Drinking at least one cup of caffeinated tea a day may lower a person's risk for glaucoma, a new study suggests.
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Highly Caffeinated 'Death Wish' Coffee Recalled Over Botulism Hazard

September 20, 2017 | Article

A company that claims to make one of the strongest coffees in the world is recalling some of its products because they could pose a risk of serious illness.
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Stoned Plus Buzzed: Mixing Caffeine and Pot Brings New Risks

July 24, 2017 | Article

What happens when you combine caffeine and marijuana?
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Brewing Up a Longer Life: Drink Coffee, Studies Suggest

July 11, 2017 | Article

People who drink coffee live longer, new studies find.
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