We humans are incredibly fascinating creatures. Our bodies go through numerous processes every day, many of which we are aware of, but there are also those that we have no idea about. We invite you to learn more about our bodies and read about 36 interesting facts about the human body.

1. The adult human spine consists of 32-34 vertebrae and includes five sections.

2. The brain accounts for an average of 2% of an adult human’s body weight and uses 20% of the oxygen it consumes.

3. There are approximately one trillion neurons in the brain.

4. Signals travel through nerves at speeds of up to 360 km/h: a command can reach the toes from the head in about 1/50th of a second.

5. The left hemisphere of the brain controls the right side of the body, and vice versa. 90% of people are right-handed, meaning their left hemisphere dominates over the right.

6. The average weight of an adult male’s brain is 1.4 kg, while for females, it is 1.25 kg.

7. The weight of the brain reaches its peak at around 20 years old and then decreases.

8. The spinal cord stops growing at the age of 4, and only the nerves connected to it continue to lengthen.

9. The heart is divided by a muscular partition into the right and left sides.

10. The total length of all our arteries, veins, and capillaries is approximately 150,000 km.

11. The heart muscle contracts about 100,000 times a day.

12. The largest organ in the human body is the skin.

13. On average, we take 18 breaths per minute.

14. The right lung has three lobes, while the left lung has two and is slightly smaller.

15. Inhaled air contains 21% oxygen, while exhaled air contains 16%.

16. Blood makes up about 8% of our body weight.

17. Excess growth hormone in childhood can lead to gigantism.

18. The body produces over 200 different hormones.

19. The liver is the largest gland in our body.

20. On average, humans have 2.5 million sweat glands.

21. Hair color is determined by melanin and carotene pigments.

22. The retina contains approximately 125 million rods and only 7 million cones.

23. The diameter of the eardrum is around 8 mm.

24. The malleus, incus, and stapes are the smallest bones in our body.

25. Only the muscles of the tongue are attached to bones by one end.

26. Our nose contains around 50 million olfactory cells.

27. The tongue has 10,000 taste buds, each of which lives for only a few days before being replaced by a new one.

28. We can distinguish between 10,000 different smells. Children have a more sensitive sense of smell: olfactory receptors gradually diminish from birth.

29. The total length of DNA molecules in a single nucleus is approximately 2 meters.

30. Our body consists of approximately 100 trillion cells.

31. The largest human cell is the egg cell, with a diameter of 0.035 mm.

32. We share 20% of our genes with bacteria, 90% with mice, and 99% with chimpanzees.

33. If a tooth is not decayed, DNA can remain preserved inside it for thousands of years.

34. On average, a person spends one-third of their life sleeping.

35. A typical one-year-old child sleeps for 14 hours, a five-year-old sleeps for 12 hours, and 90% of adults sleep between 6 and 9 hours.

36. On average, a person consumes about 40 tons of food during their lifetime.