16. Women blink twice as much as men.
![Blinking Eyes, Nose, Brown, Photograph, Facial expression, Eyelash, White, Blue, Organ, Green, Light]()
17. On the other hand, men hiccup twice as much as women.
![Wear A Hat, Lip, Hand, Cap, Human body, Sleeve, Gesture]()
18. Over the course of our lifetime we produce enough saliva to fill up two Olympic sized swimming pools.
![Public Swimming Pool Stock, Water, Swimming pool, Light, Azure, Blue]()
19. Over the course of our lives, we shed an average of 40 pounds of skin.
![Leher Yang Cantik, Face, Nose, Skin, Lip, Hand, Eyebrow, Shoulder, Eyelash, Mouth, Ear]()
20. Cornea is the only part in our entire body that doesn’t have a blood supply. It gets oxygen directly from the air around us.
![Yag Pi, Brown, Eye, Eyelash, Human body, Organism, Iris]()
