Air pollution may cause childhood obesity by disrupting impulse control, study finds
Summary
A new study shows that exposure to tiny air pollution particles called PM2.5 during a child’s first year can make it harder for them to control impulses later. This difficulty with self-control is linked to higher body fat and obesity in children aged four to eight.Key Facts
- PM2.5 are very small particles in the air from sources like traffic and burning fossil fuels.
- These particles are harmful to the brain and may cause health problems including obesity.
- The study followed 434 children from Mexico City born around 2007-2008.
- Babies exposed to more PM2.5 in their first year showed more impulsive behavior later.
- This impulsivity is connected to greater body fat and higher body mass index (BMI).
- The study suggests early pollution exposure disrupts self-control, affecting eating habits.
- Air filters like HEPA and high-rated furnace filters can reduce indoor PM2.5 levels.
- Experts say policy changes and public awareness are needed to reduce pollution exposure.
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