Doctors and scientists use information about the size of the head and brain to come up with new ways to help people. Other professionals around the world can also use this information about the size of the human head. These groups include the fashion industry, the people who make safety equipment and eyeglasses, and others like them.
Based on data and reports, it has been found that the average size of a human head is 6-7 inches wide and 8-9 inches long. The average size of a person’s head is between 21 and 23 inches around. There are a number of things that affect the size of each person’s head. Some of them are shown by these.
Gender
Studies done at the Universities of Cambridge and Oxford found that men’s heads are usually bigger than women’s. Both men and women between the ages of 18 and 59 took part in these studies. When people of the same age were compared, it was found that men tend to have brains that are 8–13% bigger on average than women. This made the heads bigger all around.
Brain Size
The size of the brain is a big part of what makes up the size of the head as a whole. The brain lives in the space inside the skull. When a baby is born, its skull is not fully formed or connected. Fontanels are small, soft spots that are covered by tough, fibrous membranes. They let the head of the foetus fit through the birth canal. As the brain grows, the skull changes to make room for it, and the delicate fontanels close. This is because bigger brains need bigger spaces. This has a direct effect on how big the head is when the person is an adult.
Nutrition
You should believe it when you hear that what you eat affects how your brain grows. The size of a person’s brain can be affected by their nutrition from the time they are in the womb until they are an adult.
Nutritional values on body and brain growth have been studied in different parts of the world. The results show that babies with normal body and head sizes were born to women who ate healthier diets while they were pregnant. In places where people didn’t get enough to eat, babies were born smaller.
Birth Order (Multiple Baby Births)
Scientists found that the order of birth affects the size of the head when they looked at the head circumference of babies born in multiples, like twins and triplets. Most of the time, the first child born weighs more, but the last child born in a multiple birth tends to have a bigger head circumference. This is because of the space inside the uterus and where the baby is in there. It also shows how food affects a child while it is still in the womb. The size of the head at birth will also depend on whether the child is a boy or a girl. This also affects how fast the head grows in the first few months of life. In general, male babies grow faster in the first few months of life.
Problems with health
There are many medical conditions that can change the size of a person’s head from the time they are born until the end of their lives. Some of these requirements are:
Microcephaly
Macrocephaly
Cephalic Disorders
Russell Silver Syndrome
Down syndrome
