If your mucus is gray or black... …you likely inhaled dark-colored particles, like smoke from a fire or heavy exhaust. Regular smokers can also blow out darker mucus because of the tar or other toxic ...

Your brain isn't broken—it’s been hijacked by dopamine overload. Discover how modern life is stealing your focus and how to ...

Professor Im Joo Rhyu, director of the Korea University Graduate Program for Convergence & Translational Biomedicine and ...