› added 4 years ago

176

TIL: carbon monoxide plays critical roles in the body under physiological conditions, acting as a vasodilator, neurotransmitter, and regulator of circadian rhythm among other important functions.

Read more ncbi.nlm.nih.gov

via reddit.com

ep6GJ TIL that the US had a maximum speed limit of 55 mph from 1974-1995. It was initially put in place to save fuel due to the oil crisis but was later promoted as a safety measure
WkxGd TIL Chong (from Cheech and Chong) shared a cell with the Wolf of Wallstreet Jordan Belfort when he went to jail for financing his son's bong company.
n7vP TIL gamers in the ‘80s could photograph their TV with a high score showing and mail it in, and Activision would send back a patch.
9vWQ TIL Duke University scientists find women need more sleep than men
KYEZG TIL Reese's PB Cup, the world's #1 bestselling candy, was invented by a former Hershey employee and sold back to Hershey by his children almost 30 years later in exchange for Hershey stock.