The history of life stretches back untold eons. Today, there is a staggering array of organisms on Earth, with more species being discovered every year. The complexity of life, from the smallest ...

Some of these create relatively mild, treatable conditions, such as strep throat. Others can lead to life-threatening infections of your blood or organs. Anyone can be affected, from babies and small ...

The bacteria and other microbes that live in your gut are known as your “gut microbiome.” They help you digest food and may support immune, heart, and brain health. However, disruption in your gut ...