Question

During the winter, Brad sleeps in a dorm room that lacks a humidifier for the heated air. In the mornings he notices that his nose is "stuffy", similar to when he has a cold, but after showering and drinking some water, the stuffiness disappears until the next morning. What might be the cause of Brad’s nasal condition?

Answer 1

Answer:

A large amounts of moisture from the mucus in his respiratory tract helps humidify inhaled air.

The dry air Brad breathes forms mucus viscous in his respiratory tract that restricts the cilia upward movement causing the mucus to build up resulting in his early morning nasal congestion.

His body water is replaced when he showers and drink fluids causing the mucus to loosens up and be moved along normally.