The given HTML code represents a paragraph element with a class attribute set to “article_date_box”. The content of the paragraph is “입력 2024/01/15 20:00”.Title: The Mystery Behind Increasing Curly Hair as We Age
Date: January 15, 2024
Author: Sang-hoon Oh
As people age, many experience an increase in the curliness of their hair. Some even go from having straight hair to completely curly hair. Is this transformation possible?
Human hair is formed by cells that divide in the hair follicles. At the bottom of the follicles, there are various tissues such as the dermal papilla, hair bulb, and hair shaft (cortex), as well as inner and outer root sheaths. The inner root sheath, in particular, plays a crucial role in firmly attaching the hair fiber to the scalp. The shape of the inner root sheath varies among individuals, with a round shape resulting in straight hair and a flat and asymmetrical shape leading to curly hair.
The shape of the inner root sheath is determined by genetics, often following racial patterns. According to a study published in the forensic science journal “Forensic Science International: Genetics” in 2018, around 95% of Africans have curly hair, and the degree of curliness is severe. In contrast, Europeans and Asians have a lower percentage of curly hair, around 12-13%, and the degree of curliness is weaker. However, it is estimated that the proportion of wavy hair, which includes a slight mix of curls, is higher.
The shape of the inner root sheath, determined genetically, can also change as we age due to hair aging. With age, hair thickness decreases, and hair color turns white, leading to age-related hair loss. During this process, the shape of the inner root sheath can also change. As a result, the structural characteristics of the hair, such as lipid composition, elongation, bending strength, can be altered, leading to increased curliness.
In addition to physiological aging, hair texture can also be affected by systemic conditions such as protein and vitamin deficiencies. Hormonal changes, frequent hairstyling, and variations in hair thickness and composition can also contribute to changes in hair texture.
While the exact reasons behind the increase in curliness as we age are not fully understood, it is clear that both genetic and environmental factors play a role. Understanding these factors can help individuals better manage and embrace their changing hair texture as they age.
(Photo: Clipart Korea)
What are the environmental factors that can lead to changes in hair texture as we age, and how do they contribute to increased curliness
R structures like sebaceous glands and sweat glands. These structures nourish and support the hair growth process.
The shape of the hair follicle plays a crucial role in determining the texture of the hair. Straight hair follicles are cylindrical, while curly hair follicles are more elliptical or even flat.
During the aging process, hormonal changes occur in the body. These hormonal changes can affect the shape of the hair follicles. As a person ages, the follicles may become more elliptical or flat, leading to an increase in the curliness of the hair.
Additionally, as we age, the production of sebum and natural oils on the scalp may decrease. This can result in drier hair, making it more prone to becoming curly or frizzy.
Genetics also play a role in determining hair texture. While some people may naturally have curly hair from a young age, others may begin to see changes in their hair texture as they age. Genetic factors can influence the rate and extent of hair curliness.
Environmental factors, such as exposure to sunlight and humidity, can also contribute to changes in hair texture as we age. Sun exposure can damage the hair cuticles, making the hair more brittle and prone to curling. Humidity can cause the hair to absorb moisture, leading to frizz and increased curliness.
While the exact mechanisms behind the increase in hair curliness as we age are not fully understood, it is clear that a combination of hormonal changes, genetic factors, and environmental influences contribute to this phenomenon.
So, if you find your hair getting curlier as you age, embrace the change! It’s a natural part of the aging process and can give your hair a unique and beautiful texture.
I’ve always wondered about this, can’t wait to find out the reasons behind it!