Iodine is an essential micronutrient for maintaining life activities, which is closely related to human growth and metabolism, especially plays a decisive role in the development of the brain. When people live in iodine-deficient environment for a long time, and their daily iodine intake is less than 50 micrograms, they can show various forms of diseases, such as endemic goiter, endemic cretinism, endemic cretinism and infertility affecting fertility, premature infants, stillbirths and congenital malformations. These diseases are collectively called "iodine deficiency disorders".
1. What are the hazards of iodine deficiency?
People living in iodine-deficient environment can't get enough iodine for a long time, which will lead to the decrease of thyroxine synthesis and secretion and cause a series of injuries.
1. Iodine deficiency in fetuses and infants will lead to different degrees of brain development backwardness and affect intellectual development.
2. Childhood can lead to physical development, sexual development, short stature and muscle weakness.
3, pregnant women can cause miscarriage, premature delivery, stillbirth, fetal congenital malformation, congenital deafness, etc. 4. Iodine deficiency in adulthood will lead to goiter and hypothyroidism.
5. The most harmful and easily overlooked is the harm of mild iodine deficiency to the intellectual development of fetus and baby. People with mental retardation caused by mild iodine deficiency have the same appearance as normal people, but it is especially difficult to go to school in childhood, and their understanding ability and abstract thinking ability are lower than those of children of the same age.