In addition to being a security checkpoint, the blood-brain barrier also gives out directions about where cells should go and what they should do.

In an extensive meta-analysis of 41 studies, vitamin D supplementation alleviated depressive symptoms and improved mood more than placebo pills.

Stomach simulations show that changes in posture can potentially have a significant (up to 83%) effect on the emptying rate of a medication into the duodenum of the intestine.

Hyaluronic acid coordinate show stem cells work with immune cells to complete the muscle repair process and ensures the efficient removal of dead tissue before new muscle fibers can be made.