Babies crawl an average of 200m a day.
212
Up to the age of six or seven months a child can breathe and swallow at the same time. An adult cannot do this.
165
40% of people who are rejected in romantic love slip into clinical depression.
72
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9