Researchers from UC San Francisco have discovered blood stem cells in the lungs, disrupting a decades-old belief that new blood cells were only made in the bone marrow. Conventionally it was thought ...
In 1821, French physician René Laennec wrote, "A spitting pot I consider as an essential part of the bedroom apparatus." Laennec, who invented the stethoscope, spent his days gazing at his patients' ...
Add Yahoo as a preferred source to see more of our stories on Google. There's no way around it: Coughing up phlegm feels gross, especially if you're already dealing with other unpleasant symptoms from ...
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Does yellow mucus mean you need antibiotics? What phlegm can—and can't—say about your health
When you're sick you'll often produce more phlegm, and might notice it's thicker or a different color: white, green, yellow or maybe even brown. Subscribe to our newsletter for the latest sci-tech ...
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