One interesting aspect is the effect of changing hormones on hair texture. During puberty, the surge of oestrogen in pre-teen and teenage girls can physically change the shape of hair follicles. Straight hair can become curly (and curly hair can become straight), seemingly overnight.
Hair changing from straight to curly often indicates a hormonal shift within the body. Factors like menopause, pregnancy, puberty, and even taking birth control, can have a drastic, switching effect on your hair's texture. Hormonal changes alter how your genes are expressed, so changes here can make a big difference.
Excessive testosterone and /or testosterone sensitiviy can cause straight hair to go curly and/or frizzy.
Curly hair caused by selenium deficiency in an adult woman.
The exact shape of that bundle is determined by the hair follicle, which is a pore on the skin from where the hair grows. How the hair grows out of the follicle influences the distribution of its proteins. So a straight follicle produces straight hair and a curved follicle produces curly hair.
Fluctuating Estrogen Levels Can Bring About Changes in Your Curly Texture. Estrogen levels often fall for curl changes as estrogen is key for maintaining those helical hair follicles. During menopause, plummeting estrogen is linked to the onset of mixed curl patterns and gradual straightening of previously curly hair.
Hormones and hair texture
Hormones are the main culprit responsible for such drastic hair texture changes. During puberty, menopause and pregnancy, many people will find their will go from straight to curly or vice versa over a period of months.
Another possible cause for curling of the hair is hypothyroidism. Hypothyroidism is a medical condition that can lead to dry, thinning and coarse hair due to a hormonal disbalance [11]. Hair follicles are direct targets of thyroid hormones.
By incorporating biotin, vitamin D, and vitamin E into your hair care routine and diet, you can promote hair growth, combat dryness, and frizz, and enjoy a head full of healthy, envy-inducing curls for many years to come.
Other hormones like prolactin, growth hormone, and cortisol also impact hair texture, contributing to changes in curl patterns at different life stages or times of stress. The complex interplay of multiple hormones means there are many possible explanations for changes in your hair type over the years.
Stress can also lead to changes in hair texture. For example, hair that was once straight can become curly or wavy due to changes in the hair follicle shape.
Hair texture changes
Hormones can affect the shape of some hair follicles, changing them from circle-shaped follicles that produce straight hair to oval-shaped follicles that produce curly hair. The coarse, wiry feel is from lower sebum levels.
If you have straight hair, your hair may become slightly curlier as you age. This is because the shape of hair follicles changes over time.
Keratin is what gives human hair structure. Hair that grows through oval follicles tends to have more keratin on one side than the other. As a result, it curls.
There is evidence that trichohyalin (TCHH) may affect hair curl in most/all world populations and that other genes such as EDAR and WNT10A only affect specific populations. Hair curl variation in native Africans is very likely a complex trait with multiple genes influencing curl.
Biotin. A pivotal vitamin linked to hair health is biotin, a B vitamin known for fortifying hair's resilience and texture. A scarcity of biotin can incite fragile and feeble hair, potentially manifesting increased frizz owing to compromised structural integrity.
Air dry or diffuse wet hair. Encourage your locks to develop a natural wave by air drying about 90% of the way, then blow-drying with a diffuser on the lowest setting while cupping sections of hair in the palm of your hand and scrunching upwards.
Hormone-Based Medications: Hormones have a major say in your hair's behavior. Birth control, hormone replacement therapy, and even some fertility treatments can cause curls to change their shape. They might loosen up or, in some cases, become curlier. It's like a mood ring but for your hair!
One interesting aspect is the effect of changing hormones on hair texture. During puberty, the surge of oestrogen in pre-teen and teenage girls can physically change the shape of hair follicles. Straight hair can become curly (and curly hair can become straight), seemingly overnight.
In Hashimoto's disease this hair loss most commonly presents in the form of diffuse hair loss across the scalp and eyebrows. Additionally, the reduced functionality of the T3 and T4 hormone reduces overall sebum production, which can give a thin, brittle appearance to your hair.
Hormones are a possible trigger for the curly hair gene. As well as affecting the quality of your hair, hormones can change your muscle tone too. This includes your scalp. The change of muscle tone could affect the shape of your hair follicles and their direction of growth.
Increased body hair—particularly on the chest, back, arms, legs, and buttocks—is extremely common for those on testosterone replacement therapy. Even if you already have hair on those areas, the texture is expected to become more coarse, thick, and dark.
Another way to achieve curls with your straight hair is to use curlers, also known as hair rollers. These curlers require no heat, so they are not damaging to your hair. There are so many different curler sets to choose from. You can purchase foam or plastic curlers as a set online.
Conditions like polycystic ovary syndrome (PCOS) and thyroid disorders can cause changes in hair texture, growth rate, and overall hair health. High stress levels boost cortisol, which can disrupt the hair growth cycle and lead to hair shedding.