Coins usually survive in circulation for about 30 years.
66
Each day, there are over 120 million sexual intercourse taking place all over the world.
301
Americans are responsible for generating roughly 20% percent of the garbage in the world.
29
Caffeine boosts memory.
405
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
29


