Air Pollution, Physical Activity, and Weight Gain: A Complex Interplay

The relationship between air pollution and weight gain is a complex and multifaceted one. Research indicates that chronic exposure to PM2.5 can contribute to the development of obesity by inducing insulin resistance, inflammation, and oxidative stress. Additionally, air pollution has been linked to reduced physical activity, which can exacerbate weight gain.

Interestingly, studies suggest that the impact of air pollution on mortality is more significant in individuals who are more physically active. This may be attributed to increased exposure to pollutants when engaging in outdoor activities during polluted days.

Therefore, it is crucial to address air pollution as a public health concern, particularly among older adults, who may be more vulnerable to its adverse effects. Recognizing the complex interplay between air pollution, physical activity, and weight gain, and their impact on overall health, necessitates a concerted effort to mitigate air pollution and promote healthy lifestyle behaviors. This will help reduce the burden of disease associated with this environmental hazard.