2024-01-15 11:00:00
life
When I was young, I had straight hair… Why frizz gets worse as you age
Reporter Oh Sang-hoon
Entered 2024/01/15 20:00
Photo = Clip Art Korea Many people say that their hair becomes more frizzy as they age. There are people who say that their straight hair changed to curly hair. Is this possible?
Human hair is made from cells that divide in hair follicles. At the bottom of the hair follicle, there are tissues such as the dermal papilla, hair matrix, hair stem, inner root envelope, and outer root envelope. Among them, the inner root envelope is the main structure at the bottom and helps hair fibers adhere firmly to the scalp. It plays a helping role. The shape of the inner root sheath varies from person to person; if it is circular, the hair grows straight, and if it is flat and asymmetrical, the hair becomes curly.
The shape of the inner root envelope is determined by genetics. In most cases, it follows race. According to research results published in 2018 in ‘Forensic Science International: Genetics’, an international academic journal in the field of forensic science, regarding 95% of Africans have curly hair, and the degree of it is curly. Europeans and Asians have only 12-13% of curly hair, and the degree of curly hair is mild. However, it is estimated that the proportion of semi-curly hair with a bit of curly hair is higher.
The genetically determined shape of the inner root envelope can also change with age. This is because aging occurs in hair as well. As you age, you experience age-related hair loss, in which hair becomes thinner and hair color turns white. At this time, the shape of the inner root sheath can change. If this happens, the structural characteristics of the hair, such as its lipid composition and stretching, bending, and twisting strength, may change and frizz may become worse.
In addition to physiological aging, systemic diseases such as protein and vitamin deficiencies can cause hair to become brittle or frizzy. The same applies to changes in sex hormones or changes in hair thickness and composition due to frequent hair styling.
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