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
About two hundred babies are born worldwide every minute.
237
It's impossible to kill yourself by holding your breath.
703
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
The best time for a person to buy shoes is in the afternoon. This is because the foot tends to swell a bit around this time.
49