Hair Fall: Getting to the Root Cause
Chiranjeevi, Thyrocare Blog — blog.thyrocare.com
Educational content only. This information is for general awareness and does not constitute medical advice. Please consult a qualified healthcare provider for any medical concerns or before making health decisions.
Key Facts
>63
Genes involved in hereditary hair fall
Only 6 are found on the X chromosome — both parents contribute
>80%
People with alopecia whose father has it
Latest research challenges the maternal inheritance myth
40+
Hair fall parameters evaluated
Thyrocare's Hair Fall Screening Advanced profile covers 40+ health parameters
2–3
Months for nutritional deficiency to show in hair
Low protein intake halts growth; hair falls out after 2–3 months
Genetics: The Foundation
Hereditary hair fall — called androgenic alopecia (male or female pattern baldness) — is the most common type. The X chromosome contains an AR gene that helps synthesize androgen receptor protein. Changes in this gene cause shortened hair growth cycles, delayed new hair growth and shorter, weaker strands.
Contrary to the popular myth that baldness comes from the mother's side, research shows that over 80% of people with alopecia have a father with the same condition. Hereditary hair fall involves more than 63 genes, with only six on the X chromosome.
Lifestyle Factors That Trigger Hair Fall
Diet and Nutrition:: Foods high in glycemic index (white bread, rice, potatoes, sweets) disturb hormonal balance, spiking insulin and androgens that bind to hair follicles. Protein deficiency halts hair growth — hair starts falling out 2–3 months after the body starts conserving protein. Include more proteins, iron, beans, pulses, eggs, fish, nuts and mineral-rich foods.
Obesity and Physical Inactivity:: Spending most of the day sitting leads to hormonal imbalance — the body is stressed into overproducing thyroxine and insulin. Obesity also hampers heart function; medications for blood pressure and cholesterol can further impact hair structure and growth.
Steroids:: Steroids increase testosterone and its byproduct dihydrotestosterone, both of which bind to hair follicles — causing them to shrink and shorten the hair growth cycle. The higher the steroid level, the greater the damage.
Smoking:: Cigarette components are vasoconstrictors — they narrow blood vessels and reduce blood flow to hair follicles, slowing growth and damaging hair structure.
Stress and Its Impact on Hair
Cortisol, the primary stress hormone, causes hormonal imbalance that leads to three types of stress-related hair fall:
• **Telogen effluvium:** Stress pushes follicles into a resting phase, stopping new growth and making existing hair prone to falling out
• **Trichotillomania:** An irresistible urge to pull out hair — a psychological response to stress
• **Alopecia areata:** The immune system attacks hair follicles
Prioritising mental health through meditation, yoga, breathing exercises, regular exercise and a healthy diet can significantly reduce stress-related hair fall.
Medical Conditions and Medications
A wide range of health conditions can cause hair fall, including pregnancy, childbirth, menopause, PCOS, thyroid disorders, nutrient deficiencies, eating disorders and anaemia.
Certain medications are also known to affect hair:
• Blood thinners
• Acne medicines
• Antidepressants
• Beta-blockers
• Cholesterol-lowering drugs
• High-vitamin A formulations
• Anabolic steroids
• Birth control pills
If you're on medication and experiencing hair fall, consult your doctor for guidance.
Testing and Early Detection at Thyrocare
Hair fall is often a symptom, not a standalone condition. Rather than treating the surface, getting to the root cause through testing is the most effective approach.
Thyrocare's Hair Fall Screening Advanced profiles for men and women evaluate over 40 health parameters — covering thyroid function, iron levels, vitamins, hormones and more — to help identify the underlying cause of your hair fall.
Regular health check-ups allow early detection and intervention before hair loss becomes significant or irreversible.
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