Caffeine

Enjoy your morning cup of joe without guilt: A new study finds that drinking four or more cups of coffee daily is linked with a lower risk of malignant melanoma, the deadliest skin cancer.

People who mix energy drinks with alcohol may be more likely to drive drunk than those who consume only alcohol, according to a new study.

In children, energy drinks can cause serious side effects, such as seizures and cardiovascular problems.

Caffeine is in a wide range of drinks that kids consume — is that safe?

Drinking decaffeinated coffee is just as helpful as drinking regular coffee is for maintaining a healthy liver, a new study finds.

Some people can't imagine their mornings without coffee, while others don't touch a drop of the stuff. Now, a new study reveals how genes influence whether people like coffee.

People feel a stronger urge to drink more alcohol when their drink contains an energy drink, along with alcohol, a new study finds.

Boys and girls react differently to caffeine after puberty, according to a new study.

Eating a small snack a few hours before bedtime may help you sleep by preventing hunger from waking you. However, there are no snacks that guarantee to put you to sleep.

Energy drinks work no better than ordinary caffeine at helping us pay attention, a new study suggests.