Reducing Indoor Air Pollution During Sleep May Help Stabilise Blood Sugar in People With Prediabetes

Prediabetes is associated with an increased risk of developing type 2 diabetes. Lifestyle factors such as diet, physical activity, sleep and environmental exposures may all influence metabolic health.

Air pollution contains fine particles and other substances that can enter the respiratory system. Researchers have investigated whether exposure to particulate matter can contribute to inflammation and changes in insulin sensitivity.

The reported research examined whether portable air filters used during sleep could reduce exposure to indoor airborne particles and influence overnight blood-glucose patterns in people with prediabetes.

The findings suggest that cleaner indoor air may help stabilise some glucose fluctuations. However, this is an emerging research area, and the results do not establish that air filters prevent diabetes or replace established approaches to blood-glucose management.

People with prediabetes should continue to prioritise balanced nutrition, regular exercise, weight management when appropriate and routine medical monitoring. Improving indoor ventilation and reducing pollution sources may also support general respiratory health.