A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
On average, there's 100 billion neurons in the human brain.
83
The human brain is insensitive to pain.
76
Panophobia is the fear of everything.
52
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Redheads require up to 20% more anesthesia to be knocked out.
112
It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101