Air pollution has devastated New Delhi over the last week, with conditions so bad that schools have closed and many businesses have chosen to shut until conditions improve.

The physical side effects are well documented. However, the cognitive side effects are not as frequently mentioned. This week Stripe CEO Patrick Collison this week put out a post articulating the negative effects of air pollution on cognition. On polluted days chess players have been found to make more mistakes. Politicians use less complex speech. Baseball umpires make worse decisions on polluted days. Stock market returns are lower on polluted days.


Want to receive more content like this in your inbox?