Scientists called the mechanism of strengthening cough

Experts have found out the mechanism of strengthening cough and increasing the sensitivity of the respiratory tract in hot dry weather. Experiments have proved that the lack of moisture transforms the composition of mucus in the bronchi, and the use of aerosol with magnesium can partially return them to normal. Details of these processes and the importance of salt treatment are described in the publication, which is quoted by Izvestia.

The work, carried out by researchers from the University of North Carolina School of Medicine, demonstrates the effect of an extremely dry climate on the respiratory system. The scientific findings were presented in the journal Scientific Reports.

With severe dehydration, the mucus in the respiratory tract dries out and settles on the cilia that protect the body. A similar effect is recorded in a number of chronic lung pathologies, including asthma and cystic fibrosis.

Loss of moisture by the mucous membrane makes the respiratory system more vulnerable, which provokes a cough and exacerbates respiratory complaints. This problem is especially acute in summer heat and in enclosed rooms with low humidity levels.

The effects of dry air are different from those of pollutants. If toxins and gases cause inflammation by direct contact, then atmospheric dryness acts through rapid fluid loss, according to the findings.

Mucus performs a critical barrier function, and the cilia ensure its proper movement. With a lack of humidity, the mucous layer loses water and changes its characteristics.

Scientists have found that in conditions of severe drying, the mucus shrinks and sticks to the cilia, which breaks the protective mechanism of the respiratory tract and increases their reactivity to irritants. This phenomenon explains the occurrence of coughing on hot days even in the absence of harmful impurities in the air.