Hold your horses — that is, horsepower. When on surface streets, heading to a red light, what’s the point in speeding up? It’s to check social media, which can be checked when not in the driver’s seat.

As compensation, you save fuel, minimize wear on brakes — with the possibility you may not need to stop at all, given that the red could turn green. But the risk of respiratory and cardiovascular diseases, and cancer, increases with the gas emissions creating an unhealthy environment.

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