1. Research has found that the different body structures of women and men make them have about three times more likely to have headaches than men.
2. Studies have shown that people who have long-term or frequently develop gum disease have a risk of stroke or heart disease is twice that of normal people. 
3. "If your mother and I fall into the water, who will you save first?" This question has appeared as early as the 1930s.
4. Milk can supplement calcium, but in fact, the calcium content in most dark green vegetables is not lower than that in milk. However, the calcium absorption rate of dark green vegetables is slightly lower. If you want to supplement calcium through vegetables, you need to eat more.
5. The bee's nest is hexagonal. Through precise calculations, it can be found that this hexagon can enable bees to use the smallest raw materials to create the largest number of hexagonal "homes" in a limited space.
6. You cannot bring jelly when taking a plane because the air pressure in the plane will expand or even explode during the flight.
7. The appearance of red tide in the sea is because the plankton in the sea reproduces explosively in a short period of time, causing the water to turn reddish brown or green.
8. Nowadays, people are accustomed to using "Prince Charming" to describe a girl's sweetheart who is like a prince in her heart, but in fact, the prince charming initially refers to those "stupid men" who ride a white horse and follow the noble lady to learn etiquette.
9, pangolin is a toothless animal, and 8 pangolins around the world have no teeth. Like birds, they rely on their stomachs to chew food.
10. Human fingers can feel objects of nanoscale size and vibrations with an amplitude of only 0.00002 mm.
11. The one who loses the most hair is not a programmer~
