Because Science

All Youse Colts/Seahawks/Obama humpers can just roll yourselves another fat one and toke it up ya friggin doucheknockers.

Michael Naughton — chair of Boston College’s physics department

Say you inflate the ball to 12.5 PSI — the NFL minimum — in a room at 70 degrees, and then used the ball outside where it was 50 degrees. That 12.5 PSI would eventually become 11.5 PSI. If you inflate the ball to 12.5 PSI in an even warmer room where it was, say, 80 degrees, and then played outdoors at 40 degrees, that 12.5 PSI would become 10.5 PSI — a drop of two PSIs.