Tears contain a natural painkiller, which reduces pain and improves your mood.
John Tyler, the 10th president of the United States, was born in 1790. He has a grandson that is alive today.
There are around 60,000 miles of blood vessels in the human body. If you took them all out and laid them end to end, they’d stretch around the world more than twice.
Portland was named by a coin flip. Had the coin landed the other way, the city would be known as Boston, Oregon.