In fact, because there is a special valve in the throat of a baby under half a year old, when it is thrown into the water, the valve will automatically close the airway, and the child can float in the water for a while without choking, but this time will not be too long, less than one minute. When they are in the water, they don't breathe, they don't spit bubbles, and of course they don't actively hold their breath like adults. This is more like an instinctive survival response. After half a year, the valve gradually degenerated and basically disappeared after one year. Another function of this valve is to prevent the baby from choking when the milk is sucked into the trachea. There are some underwater photography works of babies, which are completed by using the characteristics of babies under half a year old.

Some people think that babies are born to swim, but this is actually a wrong understanding. The density of human body is slightly less than that of water. Anyone who is not afraid of water and relaxes his muscles can float in the water without swimming. Babies, on the other hand, are not afraid of water, so they can relax easily in the water, so they are easier to float than adults who can't swim.

Benefits of baby swimming:

1 to make the baby smarter.

Swimming can effectively promote the development of baby's brain and nervous system, stimulate baby's potential, and lay a good foundation for improving children's emotional intelligence and IQ. Because the infant's swimming action is complicated, swimming exercise can improve the infant's brain function and promote the brain's ability to respond to the external environment and intellectual development.

2. Stabilize your baby's mood

When swimming, the massage effect of water will soothe children's body and mind, children will feel comfortable and relaxed, and can also eliminate children's loneliness, anxiety and fear. In addition, swimming will consume a certain amount of physical strength, so the children after swimming are emotionally stable and sleep better. In addition, swimming helps children develop regular sleep habits. In addition, it is also of great help to cultivate children's cheerful and lively personality.