A stuffy nose can be caused by an infection, weather changes, and how you sleep. A humidifier, nasal decongestants, and sleeping upright can help.

Stuffy noses are more common at night since nasal passages don't drain as well when you're lying down. Here's how to sleep better with congestion.

Our noses are home to a variety of bacteria. Some, like Staphylococcus aureus or Streptococcus pneumoniae, can cause serious ...