5 Top Causes of Hair Loss (and How to Prevent It)

top causes of hair loss and thinning hair

Why Am I Losing Hair? 5 Main Causes and Solutions

Hair loss affects millions of men and women. Whether you notice thinning hair, excessive shedding, or early baldness, the causes often follow predictable patterns. Understanding what triggers hair loss helps you take practical steps to slow it down and protect healthy hair growth.

Below are the five most common causes of hair loss — and what you can do about each one.

1. Poor Diet and Nutritional Deficiency

Your hair depends on proper nutrition. When your diet lacks essential nutrients, your body prioritizes vital organs over hair follicles. As a result, hair growth slows and shedding increases.

Key nutrients for hair growth:

  • Protein – the building block of hair (keratin)

  • Iron

  • Zinc

  • Vitamin D

  • Biotin

  • Omega-3 fatty acids

Protein-rich foods:

Fish, eggs, milk, cheese, beans, lentils, poultry, and Greek yogurt.

How to combat it:
Eat a balanced diet with sufficient protein at every meal. If necessary, consider supplements after consulting a healthcare professional.

2. Excessive Stress

Chronic stress disrupts the hair growth cycle. High stress levels can push hair follicles into the resting phase, leading to increased shedding weeks or even months later. This condition is commonly known as telogen effluvium.

Stress-related hair loss often follows:

  • Emotional trauma

  • Illness

  • Major life events

  • Ongoing anxiety or burnout

How to combat it:
Prioritize stress management:

  • Exercise regularly

  • Practice meditation or deep breathing

  • Improve sleep quality

  • Reduce workload where possible

Lower stress levels support healthier hair growth. 

3. Poor Hair Care and Damage

Hair hygiene involves more than shampooing. Excessive heat styling, chemical treatments, and harsh products weaken the hair shaft and damage follicles.

Common damaging habits:

  • Frequent blow-drying or straightening

  • Tight hairstyles (traction alopecia)

  • Overuse of chemical dyes or relaxers

  • Excessive use of styling gels and sprays

How to combat it:

  • Limit heat styling

  • Use sulfate-free shampoos

  • Avoid tight ponytails or braids

  • Deep-condition regularly

  • Trim split ends

Gentle, consistent care protects hair strength and reduces breakage.

4. Genetics (Androgenetic Alopecia)

Genetics remains one of the leading causes of hair loss. Male and female pattern baldness often runs in families. If a parent experienced early thinning or baldness, your risk increases.

Genetic hair loss usually presents as:

  • Receding hairline (men)

  • Thinning at the crown

  • Gradual overall thinning (women)

How to combat it:
While you cannot change your genes, early intervention helps:

  • Clinically proven treatments such as Minoxidil

  • Prescription options like Finasteride (for men)

  • Professional hair restoration treatments

The earlier you act, the better the results.

5. Hormonal Changes and Imbalances

Hormones regulate the hair growth cycle. When hormone levels fluctuate, hair shedding often increases.

Common triggers include:

  • Pregnancy and postpartum recovery

  • Menopause

  • Thyroid disorders

  • Polycystic ovary syndrome (PCOS)

For example, many women notice thicker hair during pregnancy but experience postpartum hair loss due to shifting estrogen levels.

How to combat it:

  • Get thyroid levels tested

  • Seek medical advice for hormonal imbalance

  • Maintain a nutrient-rich diet

  • Avoid crash dieting

Balancing hormones often stabilizes hair shedding over time.

Final Thoughts

Hair loss rarely happens without reason. In most cases, it stems from poor nutrition, stress, damaging hair habits, genetics, or hormonal changes.

While you cannot control inherited traits, you can:

  • Improve your diet

  • Manage stress

  • Protect your hair from damage

  • Seek early treatment

Early action slows progression and preserves thicker, healthier hair for longer.

We have clinics in London and Manchester.

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