New York's Central Park is nearly twice the size of the entire country of Monaco.
42
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Couples' personalities converge over time to make partners more and more similar.
235
People who laugh more are better able to tolerate pain - both physical and emotional.
36
There are more fatal car accidents in July than any other month.
85
By peeing in the shower, you can save 1,157 gallons of water a year.
31
If the human eye was a digital camera, it would have 576 megapixels.
25