The Science Behind Hair Thinning and What You Can Do

It is very common to lose up to 100 hair strands every day. But excessive loss or visible thinning may signal underlying issues. When you start to shed more strands — and fewer or none grow back, this condition is considered alopecia (hair loss).

Thinning hair may be caused by lifestyle habits, genetics, or both. Certain medical conditions may also lead to thinning hair.

Understanding The Common Causes

1. Genetics

The most common culprit is androgenetic alopecia, also known as pattern baldness. It affects both men and women, often beginning gradually and progressing with age.

2. Hormonal Changes

Life stages such as pregnancy, menopause, or conditions like polycystic ovary syndrome (PCOS) can disrupt hormonal balance, leading to thinning hair. Thyroid disorders also play a significant role.

3. Stress

Emotional or physical stress can trigger telogen effluvium, a condition where hair follicles enter a resting phase, causing sudden shedding.

4. Nutritional Deficiencies

Hair thrives on nutrients. Deficiencies in iron, vitamin D, protein, and biotin can weaken strands and slow regrowth.

5. Medical Conditions

Autoimmune disorders like alopecia areata, scalp infections, or chronic illnesses may cause patchy or diffuse hair loss.

6. Medications

Drugs used for cancer, depression, arthritis, or blood pressure can list hair loss as a side effect.

7. Lifestyle Factors

Excessive heat styling, chemical treatments, tight hairstyles, and smoking all contribute to weakened follicles and breakage.

Treatments

Scalp Massage

Gentle massages with oils like rosemary or peppermint may improve circulation. When washing your hair, use your fingertips to gently massage the scalp; this helps stimulate blood circulation. For added benefits, consider a handheld scalp massager, which can also aid in removing dead skin cells. While these practices may support scalp health, there’s limited evidence that they prevent hair thinning.

A Balanced Diet

Healthy hair relies on overall well-being. When the body is malnourished or affected by certain eating disorders, hair follicles may struggle to produce new strands. Eat a balanced diet regularly to decrease your hair fall.

Incorporate leafy greens, nuts, seeds, eggs, and lean proteins to nourish follicles.

Omega-3 and Omega-6

Omega-3 fatty acids play a role in reducing inflammation, which is linked to many health conditions. Since inflammation may contribute to premature hair loss, maintaining adequate omega-3 intake could support scalp health. These nutrients are commonly found in fish and certain seeds.

However, a 2022 study suggested that fish oil–derived omega-3s might be associated with some forms of hair loss.

Omega-6 fatty acids support overall skin health, which can also benefit the scalp. The primary dietary sources of omega-6 are plant-based oils.

Laser Therapy

Dermatologists and other skin specialists often use laser therapy, and the FDA has approved certain devices for at-home use. These at-home treatments may help stimulate hair regrowth and improve thickness, though results typically take several months to appear.

The main drawback is cost—some devices can run into hundreds of dollars, and effectiveness isn’t guaranteed. It’s best to consult a doctor before making such a significant investment.

Disclaimer: This content is for general informational purposes only and should not replace professional medical advice. Always consult a qualified healthcare provider with any questions about your health or treatment options.