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.

Chemical digestion occurs when the body uses enzymes to break down certain molecules, such as carbohydrates. This process allows the bloodstream to absorb smaller molecules to transport around the ...