Your body is full of trillions of bacteria, viruses and fungi. They are collectively known as the microbiome. While some bacteria are associated with disease, others are actually extremely important for your immune system, heart, weight and many other aspects of health. This article serves…

Want to hear about a messed-up study? Of course you do. Here’s how scientists measure the will to live: Separate a young rat from his mother, throw him in a pool of water with no exit, and see how long it takes him to stop…