Once nearly eradicated, the “old man’s disease” is back and suffocating younger miners. Federal cuts risk putting a solution ...

Medically reviewed by Amelia MacIntyre, DO Mucus, a fluid in your upper respiratory system, is usually clear. But a number of health conditions can cause it to turn brown. Also known as brown phlegm ...

Brown phlegm comes from old blood. Black phlegm usually results from particulates in your lungs from smoke or coal dust. A common cause of phlegmy coughs is bronchitis. Bronchitis is caused by an ...

The first warning sign involves persistent wet coughing that produces mucus. Unlike dry coughs associated with common colds, allergic bronchitis coughs typically bring up clear or whitish phlegm.

Connor noted that brown mucus could be an indicator of bronchitis or pneumonia ... airway is irritated or there is trauma in your respiratory tract,” Connor said. “Black mucus could be old dried blood ...

Connor noted that brown mucus could be an indicator of bronchitis or pneumonia ... you may find yourself with black boogers at some point in your life. “Black mucus could be old dried blood ...

Connor noted that brown mucus could be an indicator of bronchitis or pneumonia ... trauma in your respiratory tract,” Connor said. “Black mucus could be old dried blood, an infection, or ...

Connor noted that brown mucus could be an indicator of bronchitis or pneumonia ... Although it’s not super common, you may find yourself with black boogers at some point in your life. “Black mucus ...

But scientists recently made an unexpected discovery: Many particles are sporting parachutes made of mucus. Researchers observed this phenomenon when they brought a newly invented type of ...