Your body is creating and killing about 2.4 million red blood cells per second.
17
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82