Matthew Walker - WUFT

Experts worry that a bird flu outbreak among dairy cattle could lead to a pandemic in the human population. Now, there's some research behind that. A study finds that the flu can remain infectious in refrigerated raw milk for up to five days.

Researchers suggest that children with fractures who are deficient in vitamin D take much longer to heal than those with sufficient levels.

While a vegetarian diet has long been thought to have health benefits, we might just be at a point in our evolution where the negative health impacts of eating meat may outweigh the benefits.