Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Your heart will pump about 212 million liters in its lifetime.
26
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23