Is it true that the fortune teller said that the child had a lock?

This is superstition. Children with locks usually show symptoms such as crying, catching a cold or refusing to sleep in the middle of the night. Old people often say that children have locks, which is related to the lack of trace elements in the body. It may be caused by calcium deficiency. It is necessary to supplement calcium to children in time and eat more foods with high calcium content. You can also take your child to do more outdoor sports and bask in the sun, which will help your baby absorb calcium.