This film explores the complex process of human digestion, detailing how food is broken down into molecules by the digestive system. It follows the journey of food from the mouth, where it is chewed ...

My tummy is more tender than it used to be. Not more tender than 10 years ago, but more tender than 2½ million years ago. The human digestive tract is the product of more than 5 million years of ...

New research offers insight into the evolutionary history of amylase genes, which are key to our ability to eat and digest starchy food. A study found that human ancestors started carrying multiple ...