1. The population of the earth is about 8 billion people. That's a lot of people!
2. The average person spends about 1/3 of their life asleep. That's a lot of time!
3. The human heart beats about 100,000 times a day. That's a lot of beats!
4. The human brain is about 2% of a person's body weight, but it uses about 20% of the body's energy. That's a lot of energy!
5. The human eye can see more colors than a camera can. That's a lot of colors!
6. The human nose can smell about 1 trillion different scents. That's a lot of smells!
7. The human tongue can taste about 10,000 different flavors. That's a lot of flavors!
8. The human skin is the largest organ in the body. That's a lot of skin!
9. The human body is made up of about 60% water. That's a lot of water!
10. The human body is constantly changing. Every day, about 1 million new skin cells are produced. That's a lot of new cells!