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 ...

When you’re sick, you’ll often produce more phlegm, and might notice it’s thicker or a different colour: white, green, yellow or maybe even brown. What can this phlegm – also called mucus, snot, ...

When a persistent cough disrupts your sleep and drains your energy, it might be more than just a stubborn cold. Pneumonia, a serious lung infection, affects millions of Americans each year and can ...

“Pneumonia is an infection of the lungs which causes inflammation in the tiny air sacs in the lungs, which are called alveoli ...

November is Lung Cancer Awareness Month. Over the past decade, research and treatment for lung cancer have made significant strides, leading to improved survival rates.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Having a congested chest can be uncomfortable to say the least. And when you’re feeling under the weather ...

Q: Over the years I have been bothered by coughing up phlegm from the back of my throat many times a day. One doctor told me it is not infected because the phlegm is white, but didn't really help me ...

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. We all produce mucus, even when healthy. Mucus is a ...