Crying is a completely normal physiological state and is nothing to worry about in the natural development of children. However, children crying at night with unusual signs can signal that the child is suffering from diseases that are harmful to health, including rickets due to vitamin D deficiency.

Vitamin D is not only important for children's development, it is also essential for overall health. But if you think your child is getting enough vitamin D, you may be surprised to learn that the number of children with vitamin D deficiency is alarming and continues to rise. Children are especially susceptible to vitamin D deficiency due to lack of sunlight in the winter.

Our grandparents often say: "3 months old can roll over, 7 months old can crawl, 9 months old can walk". However, there are 17-month-old babies who cannot walk, which makes many parents worried. So is malnutrition related to slow walking?

The fact that children often tense up their muscles makes many parents worry. However, this phenomenon is quite common in newborns and almost every child will experience it with different causes and severity.

Hypocalcemia can occur in both adults and children, but is especially dangerous because it can leave complications that affect the long-term development of children. Hypocalcemia in children is also more difficult to detect because the symptoms are not really clear and gradually increase until they become critical. So what is hypocalcemia?