A new study published in Nature has found that more than 56 percent of the world's oceans have changed color in the past 20 years, and climate change is to blame.
It’s been a month since a Maryland man became the second person to receive a transplanted heart from a pig –- and hospital video released Friday shows he’s working hard to recover.
CVS Health is pulling from its shelves some cough-and-cold treatments that contain an ingredient that has been deemed ineffective by doctors and researchers.