A new study shows, for the first time, that horses read and respond to human emotions by integrating the facial expressions with their tone of voice.

Caffeine is known to protect against heart disease and stroke. A new study finds the mechanism that underpins this protection, and mitochondria are key.

Dehydration is more common during pregnancy than at other times. This is because the body has an increased demand for water. Dehydration can be dangerous for the mother and baby, so it is important to pay attention to the early warning signs of dehydration during pregnancy and to learn how you can prevent dehydration.