Natural Hair and Beauty

When people notice their hair becoming thinner, the first explanation they often hear is genetics. While hereditary hair loss plays a significant role for many men and women, genetics rarely tells the whole story.

Hair follicles are living structures that depend on healthy blood flow, balanced hormones, adequate nutrition, and a healthy scalp environment. If these factors become compromised, hair shedding can increase, hair growth may slow, and genetically susceptible follicles may miniaturise more rapidly.

Understanding the factors that influence hair health can help explain why some people experience accelerated hair loss and what can be done to support healthier-looking hair.

The Genetic Foundation of Hair Loss

The most common form of hair loss is androgenetic alopecia, often referred to as male or female pattern hair loss.

This condition occurs when genetically susceptible hair follicles become sensitive to dihydrotestosterone (DHT), a hormone derived from testosterone. Over time, affected follicles gradually shrink, producing finer, shorter hairs until growth may eventually stop altogether.

However, genetics determine susceptibility—not necessarily the speed or severity of progression.

Many people with a genetic predisposition notice periods where hair loss accelerates. This is often because additional factors are placing stress on the follicle and scalp environment.

Inflammation: The Hidden Driver of Increased Shedding

Inflammation is increasingly recognised as an important contributor to hair thinning.

When the scalp is chronically inflamed, the normal hair growth cycle can become disrupted. Inflammatory processes may affect blood supply, cellular signalling, and follicle function, making it harder for hair to remain in its active growth phase.

Common causes of scalp inflammation include:

• Seborrhoeic dermatitis

• Excess scalp oil and microbial imbalance

• Environmental irritants

• Poor scalp hygiene

• Chronic skin conditions

• Oxidative stress

Signs that inflammation may be contributing to hair concerns include:

• Itching

• Redness

• Tenderness

• Excess oiliness

• Flaking

• Increased shedding

For individuals with genetic hair loss, chronic inflammation may place additional pressure on already vulnerable follicles, potentially contributing to faster thinning over time.

Stress and Toxins: When the Body Prioritises Survival

The body views hair as a non-essential tissue. During periods of stress, energy and nutrients are redirected towards organs and systems required for survival.

Physical or emotional stress can trigger a condition known as telogen effluvium, where a larger number of hairs enter the resting phase of the growth cycle prematurely. This often results in increased shedding several weeks or months after the triggering event.

Common stress-related triggers include:

• Emotional stress

• Illness or infection

• Surgery

• Significant weight loss

• Poor sleep

• Hormonal changes

• Major life events

Stress also increases cortisol production, which may contribute to inflammation and negatively affect follicle function.

In addition, daily exposure to environmental toxins—including pollution, cigarette smoke, and certain chemicals—can increase oxidative stress within the body. Oxidative stress creates free radicals that may damage cells and contribute to accelerated follicle ageing.

While toxins may not directly cause genetic hair loss, they can create an environment where hair follicles struggle to perform optimally.

Malnutrition and Malabsorption: Feeding the Hair Follicle

Hair is one of the fastest-growing tissues in the body and requires a constant supply of nutrients to support healthy growth.

Many people focus on what they eat, but absorption is equally important. Even a balanced diet may not provide adequate nourishment if nutrients are not being properly absorbed.

Key nutrients involved in healthy hair growth include:

• Protein

• Iron

• Zinc

• Vitamin D

• B vitamins

• Selenium

• Essential fatty acids

• Amino acids

Deficiencies in these nutrients may contribute to:

• Increased shedding

• Reduced hair density

• Slower growth

• Weaker hair fibres

• Poor scalp health

Malabsorption issues may occur due to:

• Digestive disorders

• Gut inflammation

• Low stomach acid

• Certain medications

• Chronic stress

• Age-related digestive changes

This is one reason why hair thinning can sometimes be one of the first visible signs that the body is not receiving or utilising nutrients efficiently.

Why a Whole-Body Approach Matters

Hair follicles do not exist in isolation. They respond to signals from throughout the body.

While genetic hair loss cannot be completely reversed through lifestyle changes alone, addressing contributing factors such as inflammation, stress, nutritional deficiencies, and digestive health may help create a healthier environment for hair growth.

A comprehensive hair and scalp assessment often looks beyond genetics to identify potential obstacles that could be affecting follicle performance.

Areas worth considering include:

• Scalp health and inflammation

• Nutritional status

• Digestive function

• Stress management

• Sleep quality

• Hormonal balance

• Lifestyle and environmental exposures

The Takeaway

Genetics may set the stage for hair loss, but they are only one part of the story.

Inflammation can disrupt the hair growth cycle, chronic stress may increase shedding, environmental toxins can contribute to oxidative damage, poor metabolic health, and nutrient deficiencies or malabsorption may leave follicles without the resources they need to thrive.

By understanding and addressing these factors, it may be possible to better support scalp health, improve hair quality, and help maintain healthier-looking hair for longer.

Healthy hair starts from within. The most effective approach is often one that considers the scalp, the body, and the lifestyle factors influencing both.