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.
Researchers drew up a list of the "people foods" that are the most common culprits in pet poisonings worldwide.
Is it really that bad to give a dog a bite of a chocolate bar? Live Science investigates just how much chocolate is lethal to dogs.
Caffeine powders can be dangerous because they are much more potent than typical caffeine-containing beverages.
The findings add to a growing body of evidence linking energy drink consumption with heart problems.
Caffeine may really be a trigger for migraines, but only if you consume a lot of it, a new study suggests.
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