Air Pollution Slows Marathoners Down

Ever wondered how air quality might affect marathon times? A study from researchers at an Ivy League university decided to find out. They looked at over 2. 5 million male and female marathon finishers, and added pollution data to the mix. How did they do this? They used a fancy model to pinpoint pollution levels along race routes. So, what did they discover? Higher pollution was linked to slower finish times. Men ran an average of 32 seconds slower, while women added 25 seconds to their time for each extra microgram per cubic meter of air. Faster runners felt the impact even more.

Why might pollution slow us down? It could be due to things like higher blood pressure, constricted blood vessels, or even breathing trouble. We already know pollution is connected to big health issues like heart and lung diseases. “Think about it, ” said a researcher-turned-doctoral student. “Professional runners put so much into beating records. Our study shows that even a tiny delay matters. ” It might be time to add air quality to the list of performance factors runners watch out for.

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