Why does hair thin as we age?

age hair thinning

We notice our bodies change in various ways as we age, and hair is one of them. Ageing is linked to hair loss or hair fall, because of multiple reasons like hormonal shifts, genetics, and health. Generally, the body weakens with age and this differs from person to person. While some don’t see visible changes, a few may see them. This blog helps you understand the link between thin hair and the age factor. Let us get into it.

Understanding the normal cycle of growth

Typically, hair growth follows three phases; 

Anagen phase ( growth ):

In the growth phase, the hair follicles produce new hair strands and this period may extend to two to six years, depending on conditions like age, health, and genetics. Hair that stays prolonged in the anagen phase is usually longer, fuller and thicker in younger individuals.

Catagen phase ( transition) :

In the catagen phase, the hair growth slows down, preparing for the resting session, where hair follicles shrink and this transits to the resting phase. This phase lasts for about two to three weeks.

Telogen phase (Resting and shedding ) :

Hair remains at the resting stage for about two to three months before shedding. Usually, everyone loses between 50-100 hairs per day, but as we age, more hair may enter the telogen phase, contributing to thinning.

Also Read: Stages of the Hair Growth Cycle: Know its Four Phases

Contribution of the cycle to thinning

As we grow older, this cycle changes slowly. The growth phase remains only for a short period while the other two last for a prolonged time. This extended period of changes visibly shows less voluminous hair and eventually fades in texture. With age, the hair follicles shrink, leading to thin and short hair. 

Two factors for thinning 

Genetics

Genetics plays a vital role in hair thinning as we inherit some of the genetics through our ancestors. Early hair thinning is one of the signs of genetic transfer. This lineup comes from both paternal and maternal sides. If any of your family members had hair loss and balding, then you have a huge chance of hair thinning.

Hormonal shifts

Hormones are another main factor in hair thinning. Our hormonal levels shift gradually over time. For instance, men experience a decline in testosterone and other androgen hormones, which directly influence hair follicles. In women, menopause leads to a decrease in estrogen levels, and thus eventually takes to significant thinning. Additionally, hormone imbalances at any stage in life, such as thyroid disorders, can also accelerate hair thinning.

Also Read: Top 5 Causes of Hair Loss with Solutions to Prevent It

Other common Health Conditions Linked to Hair Thinning

Thyroid disorders, autoimmune diseases like alopecia areata, and diabetes are the other common conditions that lead to hair thinning. These conditions affect the overall condition of the body leading to a decline in the health of the hair strands and scalp.

Medications and Hair Thinning

Consuming more medications for prolonged periods has side effects and eventually impacts hair thinning. Certain medications like beta-blockers, antidepressants, and chemotherapy drugs are known for influencing the hair growth cycles. If you suspect any medication is affecting your hair, consult your doctor for possible alternatives.

Hair Follicle Miniaturization

The hair follicles shrink over time, which leads to less voluminous hair, often coming from genetics and age, a common cause of hair thinning in both men and women.

Hair Thinning Among Genders

Hair thinning affects men and women differently, primarily due to hormonal variations and genetic predispositions.

Male Pattern Hair Loss

Male pattern hair loss where it visibly takes place is in the crown area of the head and this is known as androgenic alopecia, which is typically characterized by a dimnishing in hairline. It’s often driven by genetics and testosterone levels, leading to miniaturized follicles over time.

Female Pattern Hair Loss

After attaining a certain stage usually after menopause women often experience more thinning of hair across the scalp rather than specific bald spots. This type of hair thinning happens when estrogen levels drop, making hair more susceptible to thinning.

Signs of Aging Hair Beyond Thinning

Apart from thinning, ageing also brings changes in texture, colour, and elasticity. Many people notice that their hair becomes drier, more brittle, and prone to breakage as they age. Hair greying, while natural, also indicates a reduction in melanin production, which can affect hair quality.

Preventive Measures to Slow Hair Thinning

1. Healthy Diet

2. Stress Management

3. Treatments for Age-Related Hair Thinning

4. Topical Treatments

5. Oral medications

6. Hair transplant

Embracing Healthy Hair as We Age

Hair thinning is a natural part of ageing, but with the right care and attention, it’s possible to maintain healthier hair for longer. By understanding the factors that contribute to thinning and taking proactive steps, you can support your hair through every stage of life.

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FAQs

1. Can hair thinning be reversed?

Hair thinning can often be slowed or managed, especially with early treatment, but full reversal is rare without specific interventions like medications or surgery.

2. Does diet affect hair thickness?

Yes, diet plays a significant role. Nutrient deficiencies, particularly in iron and vitamins like biotin, can accelerate thinning.

3. Are natural remedies effective for hair thinning?

Natural remedies, like certain oils and scalp massages, can support scalp health and potentially improve growth in minor cases, but they are not a guaranteed solution for severe thinning.

4. Is stress a major cause of hair thinning?

Chronic stress can lead to hair shedding, but it’s usually reversible once stress levels are managed. Long-term stress, however, may have a lasting impact.

5. How soon should I seek help if I notice hair thinning?

It’s best to consult a professional as soon as you notice significant thinning, as early intervention can prevent further loss and provide more options for regrowth.