Chilean researchers led by Dr. Juan Carrillo Azócar from the Department of Environment of the Chilean Medical College and the Sleep Unit of Quilpué Hospital have revealed how air pollution disrupts nighttime rest and triggers chronic diseases.
The study describes a “pathological triad”: respiratory inflammation caused by pollutants turns into a vicious circle affecting the immune, cardiovascular, neurological systems, and mental health.
Chile records more than 14,900 annual deaths linked to fine particulate matter, leading mortality rates due to pollution in South America.
Direct impact on sleep
The technical report shows that between 24% and 37% of heart and metabolic damage caused by pollution occurs because pollutants affect sleep architecture.
Affected areas:
- Cardiovascular: sleep fragmentation raises blood pressure, with effects comparable to an antihypertensive.
- Neurodegenerative: lack of sleep interrupts the brain’s cleaning of toxins, accumulating harmful proteins.
- Mental health: increases cases of anxiety and depression.
- Oncological and respiratory: reduces immune defenses and melatonin, a key hormone for repairing cellular DNA.
A recurring social problem
Every winter, pollution becomes an urgent issue in Chile. Society seems accustomed to living with:
- Environmental alerts due to poor ventilation.
- Collapse of medical emergencies.
- School and work absenteeism due to respiratory conditions.
This scenario amplifies the impact on families and communities, creating a domino effect on productivity and public health.
Public policy proposals
The Chilean Medical College has proposed urgent measures:
- Incorporate sleep care in environmental alerts.
- Pilot purification programs in rooms of “sacrifice zones” such as Quintero-Puchuncaví, Coronel, and Huasco.
- Prevention strategies that integrate environmental health and sleep quality.
International symposium
To delve into these conclusions, the “Air Pollution and Chronic Diseases” Symposium will be held, where Dr. Carrillo will present alongside experts from Chile, Brazil, and Italy.
The meeting will address the links between pollution, sleep disorders, cardiovascular diseases, mental health, cancer, and respiratory conditions.
Reflection and citizen awareness
The scientific finding confirms that pollution not only affects the lungs but also disrupts nighttime rest, creating a circle of chronic diseases. The evidence reinforces the urgency of implementing environmental health policies and raising public awareness about the importance of protecting both air and sleep.
The Chilean research marks a before and after in understanding the impact of pollution.
Sleep, a vital process for body regeneration, becomes a silent victim of pollution. Protecting it is protecting the overall health of the population and ensuring a more sustainable future.
