Discover what the latest science says about athletic performance, from the role of genetics and heart adaptations to preventing common sports injuries and heat illness.
Your skin barrier is a dynamic ecosystem of cells, lipids, and bacteria that keeps moisture in and irritants out. Learn what the latest science says about how this microscopic shield works and how to properly repair it.
Hyaluronic acid is one of the most popular ingredients in skincare, but does it actually work? Research shows its ability to hydrate and repair the skin depends entirely on its molecular size and how it is delivered into the body.
Is the "8 glasses a day" rule a myth? New research reveals how age, job type, and diet change your hydration needs, and why drinking to thirst isn't always enough.