It’s man-made.
New research from Yale University suggests a connection between rising rates of eczema and exposure to air pollution, particularly fine particulate matter, which is prevalent in areas with high industrialization. Eczema, a chronic skin condition characterized by itchy, dry skin and rashes, affects millions of Americans. While the exact causes of eczema are not fully understood, it’s believed to be triggered by an overactive immune response to various environmental factors. This study sheds light on how polluted air might be one of those triggers.
In their study, researchers analyzed data from nearly 287,000 people in the United States, including about 12,700 diagnosed with eczema. They compared local eczema rates with air pollution levels across different zip codes, focusing on fine particulate matter—tiny particles in the air that can penetrate deep into the lungs. Their findings revealed that an increase of 10 micrograms of particulate matter per square meter was associated with a doubled likelihood of developing eczema. This link remained even after accounting for other potential eczema triggers, such as smoking.
Although the study cannot establish a direct cause-and-effect relationship, the findings suggest a strong association between air pollution and eczema. Similar patterns have been observed in other global studies, including research from Taiwan, Germany, and Australia. This raises concerns about the growing health impacts of air pollution, particularly in urban areas where industrialization and vehicle emissions contribute to poor air quality.
For those already diagnosed with eczema, the study also warns that air pollution might worsen their symptoms. The researchers advise people with eczema to take extra precautions during times of poor air quality, such as staying indoors, using air filters, and covering exposed skin when outside to prevent flare-ups. This is especially important on days with high levels of smog or particulate pollution.
Overall, the research emphasizes the importance of addressing air pollution not only for its broader health impacts but also as a potential factor in the worsening of conditions like eczema. The study provides new insights into how environmental factors like air quality might play a role in the development and exacerbation of skin disorders.
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