human

10 FACTS ABOUT THE HUMAN BODY YOU DIDN'T KNOW

1. Human blood travels 95,000 km a day.
2. The salivary glands secrete 1.5 liters of saliva per day.
3. A nerve impulse from the brain moves at a speed of 274 km/h.
4. 50,000 cells in your body die and are replaced by new ones while reading this sentence.
5. When you sneeze, all body functions stop, even the heart.
6. The only part of the body that does not have a blood supply is the cornea of ​​the eye. It receives oxygen directly from the air.
7. When you blush, your stomach turns red along with you.
8. The surface area of ​​human lungs is approximately equal to the area of ​​a tennis court.
9. Eyes remain the same size all your life, but your nose and ears grow throughout your life.
10. The strongest muscle in the human body is the tongue.