A healthy bowel movement varies from three times a day to three times a week. But is that too much or too less? Here's how it ...

To turn human waste into a usable fuel, Firefly uses a method called hydrothermal liquefaction, which is good for wet waste. By combining high pressure and heat, it converts the sewage into ...

Yellow poop or yellow diarrhea can have many causes, and though it's often harmless, it can indicate a more serious health ...