According to a new study, slowing the aging of your intestines may be vital to slowing overall aging. An experiment on zebrafish showed that if the aging of just that one organ was slowed through DNA ...

Scientists produced 3-D looks at shark’s guts. By Veronique Greenwood The inside of a shark is full of curiosities, starting with rows of hardworking teeth that can be replaced by fresh ones ...

After every meal, the intestines perform an action called peristalsis—moving food through their hollow interiors with coordinated contractions and relaxations of the smooth muscle. For more than a ...

When it comes to intestines, it sure seems like two are better than one. I asked my friend Franck Carbonero why that is. He’s a microbiologist at Washington State University. He studies the bacteria ...

Everyone has bacteria in their gut. They play a key part in digestion. But these bacteria live mostly in your large intestine, or colon, not your small intestine. When too many of the wrong kind of ...

In 1920, Serbian-born inventor Nikola Tesla designed and patented what he called a “valvular conduit”: a pipe whose internal design ensures that a fluid will flow in one preferred direction, with no ...

Mesenteric artery ischemia is a condition that restricts blood flow to your intestines. Three main arteries, called the mesenteric arteries, supply blood to your small and large intestines. Narrowing ...

For more than a century, researchers have relied on flat sketches of sharks' digestive systems to discern how they function -- and how what they eat and excrete impacts other species in the ocean. Now ...