Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
You forget 90% of your dreams.
256
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
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