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.
Latest about caffeine
32 unusual medical cases
Medical case reports feature a wide array of unusual ailments, from "furry tongues" and water allergies to changing eye colors.
Does caffeine help or cause headaches?
Caffeine's influence over headaches is complicated.
Does coffee really give you an 'energy boost'?
Coffee may make you less drowsy, but it doesn't really "energize" the body.
These 7 Foods Cause the Most Pet Deaths
Countdown Researchers drew up a list of the "people foods" that are the most common culprits in pet poisonings worldwide.
Why is chocolate bad for dogs?
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.
Can Energy Drinks Cause Miscarriages?
The effect of caffeine on miscarriage is still uncertain, experts say.
Does coffee really stunt kids' growth?
It's probably fine to give your child weak coffee, as long as you skip the sugar.
Man dies from caffeine overdose after drinking equivalent of 200 cups of coffee
Caffeine powders can be dangerous because they are much more potent than typical caffeine-containing beverages.
