A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Roughly 90% of the world's population live in the northern hemisphere.
18
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
About two hundred babies are born worldwide every minute.
237
If the population of China walked past you, in single file, the line would never end because of the rate of reproduction.
1k
Nearly half of the entire world's adult population has never drunk alcohol.
12