Interesting Facts About the Human Body – 2

1. The amount of blood in a human body is one-thirteenth of their total weight. That means a person weighing 65 kg has about 5 kg of blood.
2. There are 25 billion red blood cells, which carry oxygen in the body, and they live for 4 months.
3. There are 2.5 billion white blood cells, which protect against diseases, and they live only 12 hours.
4. If all the veins in the body were laid side by side, it would require one and a half acres of land.
5. The human nervous system is so long that it could wrap around the Earth 7 times.
6. Any sensation travels through the nervous system at a speed of 200 miles per hour.
7. When a feeling arises in the body or mind, it takes 0.1 seconds to reach the brain.
8. At birth, a baby has 350 bones.
9. Over a lifetime, one person produces 40,000 liters of urine.
10. The total skin on a human body covers 20 square feet.
11. There are 10 million pores on the skin of a human body.
12. The amount of fat in the human body is enough to make 7 large cakes.
13. There are 650 muscles in the human body. In some activities, 200 of them are active. The face alone contains over 30 muscles. Smiling activates more than 15 muscles.
14. A single blood cell travels 100,000 kilometers to circulate throughout the body and return to its starting point—that’s enough to circle the globe 2.5 times.
15. Our brain can recognize and remember about 10,000 different scents.