Getting caffeine out of coffee is an intensive process.
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.
It may sound counterintuitive, but people who are supersensitive to coffee's bitter taste actually drink more of it, a new study finds.
A new report divides coffee lovers into three groups depending on how their bodies respond to caffeine, but does science really support this conclusion?
Caffeine can perk you up, but exactly how much caffeine should you consume – and when should you take it – to achieve "peak" alertness?
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.
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.
A teen in South Carolina has died after drinking three caffeinated beverages in a short period of time.
Consuming energy drinks may be particularly risky for people with a certain genetic heart condition, a new study from Australia suggests.
Drinking coffee may reduce the inflammatory processes that naturally come with age, researchers said.
Can people really get "addicted" to caffeine? Can people die from a caffeine overdose? Here are the facts about the world's most popular mood-altering drug.
If one cup of coffee keeps you perked up all day, you may be able to thank your genes for that long-lasting caffeine kick, a new study finds.
A previously healthy 28-year-old man wound up in the emergency room with heart problems after drinking two energy drinks a day for months.
Casual exercisers will not benefit from workout supplements, but creatine, caffeine or beta-alanine can benefit intense workouts.
People who don't get enough sleep for several days in a row can't rely on caffeine to give them a mental boost, new research finds.