Scientists are uncovering new clues that a cosmic explosion may have rocked Earth at the end of the last ice age. At major Clovis-era sites, researchers found shocked quartz—evidence of intense heat ...

Ben Sasse reveals pancreatic cancer diagnosis: "Death sentence" Ashlee Buzzard arrested in murder of daughter Melodee: 'Cold-blooded' Reese Witherspoon and daughter Ava look so alike in photo, fans ...

Qin Rao, MD, is a board-certified physician based in New York City. He currently works as a gastroenterologist and hepatologist at Manhattan Gastroenterology. Grey poop can be caused by liver issues ...

Scientists have discovered that gut-born bacteria may hold the secret for treatments of everything from IBD to Parkinson’s disease. Now they just need samples from the people living in the most ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...

Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. If you’re of a certain generation, you might be able to trace your affinity for orcas to ...

Sherri Gordon, CLC is a certified professional life coach, author, and journalist covering health and wellness, social issues, parenting, and mental health. She also has a certificate of completion ...