Gail Bornhorst designed and built this machine to simulate human digestion, hoping to provide information that will help people decide which foods and preparation methods are best for their health.

There's rarely time to write about every cool science-y story that comes our way. So this year, we're once again running a special Twelve Days of Christmas series of posts, highlighting one science ...

The human digestive tract is home to thousands of different strains of bacteria. Many of these are beneficial, while others contribute to health problems such as inflammatory bowel disease.