Your colon is lined with a layer of mucus. It's wet, it's slimy, and it keeps your stool hydrated enough to, you know, move along. Without it, everything dries out and gets stuck. Researchers at ...

Mucus, or phlegm, is a thick, slippery substance secreted by glands and cells in your body. Its important to your immune system because it traps microorganisms, dirt, and other particles that shouldnt ...

A spitting pot I consider as an essential part of the bed-room apparatus. That’s what French physician René Laennec wrote in 1821. Laennec, who invented the stethoscope, spent his days gazing at his ...