Look at your eyes in front of the mirror, do you see a black sphere in the middle of the eye? That is the pupil of the eye. What are pupils and how do they work? Let's explore the answer in the following article. The eye is one of the sense organs most often used among the other five senses. Almost all information and stimuli received by humans come from the sense of sight through the eye. All parts of the eye have their respective functions, including eye pupils. How Pupils Work Normal pupils are perfectly round and black. In adults, pupils usually measure between 2-4 millimeters in bright light, and measure 4-8 millimeters in dark conditions. The way the pupils work is the same as the camera's aperture, which is to determine how much light enters and is captured by the eye. Widening or shrinking pupils occur automatically thanks to nerves in the eye. In low light conditions or in the dark, the pupils will enlarge, so that more light reaches the retina to support visio...
Meeting the needs of iron for infants is very important to support their health and development. Until now, iron deficiency in infants is still one of the most nutritional problems in the world. Without enough iron, babies can experience anemia and growth and development disorders. Iron plays an important role in the formation of hemoglobin, which is a component of red blood cells that function to carry oxygen throughout the body. Without enough iron, the body cannot form hemoglobin. As a result, the body's tissues and organs can experience lack of oxygen. There are several factors that can increase your risk of an iron deficiency baby, including Born from anemic mother during pregnancy. Born prematurely or having a low birth weight. Babies get breast milk from mothers who are iron deficient. Impaired iron absorption. Babies drink iron fortified formula (fortified). Iron deficiency in infants and children can lead to anemia, a condition in which the body lacks red blood ...