Thinning Hair: Why and How it Happens

Do you have thinning hair? Here are some common and not-so-common reasons why you might be seeing less and less hair on your head.


Thinning hair and hair loss are more common in women than you might imagine, and no less demoralizing. 78% of men and women of all ages experience the problem of thin looking hairReasons can range from the simple and temporary—a vitamin deficiency—to the more complex, like an underlying health condition.

In many cases, there are ways to treat both male and female hair loss. It all depends on the cause. We sat down with our friends at Nioxin to discuss the reasons why our hair may be looking a little thin these days.

Thin looking hair is due to:

  • Fewer hair strands
  • Finer hair strands
  • Poor scalp environment from which hair grows
  • As an extension of our facial skin, the scalp requires the same attention and care
  • Those facing this stressful condition are seeking expert advice to find solutions they can trust

6 reasons why you are experiencing thinning hair:


1. Genetic Factors 

A common family predisposition involves natural, age-related hormonal changes that can trigger hair loss.  This is caused by the conversion of testosterone into the toxin Dihydrotestosterone (DHT) and can be inherited from either your mother and your father. 

2. Stress & Trauma

Stress can produce increased levels of testosterone, which converts to DHT and interrupts the hair’s growth cycle.  Stress also constricts blood supply through the capillaries, restricting oxygen and nutrient uptake and vitamins to the hair follicle.

3. Health Issues

Several underlying health issues can cause hair thinning, including a malfunctioning of the hormone-producing thyroid or the natural hormonal changes women experience after pregnancy and during menopause. 

4. Environmental Factors

Air and water pollutants, chlorine, metals and minerals may be left on the scalp and hair thus contributing to thinning. Pollutants such as pseudo-estrogens and toxins from within our bodies are also a factor.

5. Medication Issues

The hair follicle is incredibly sensitive to changes in the body. Any hormone therapy (including birth control) can contribute to hair thinning, as can steroids, specific chemotherapies, and medications for blood pressure, diabetes, heart disease and acne.

6. Nutrition & Diet

What you eat can play a significant role in hair growth and rejuvenation. Vegan and vegetarian diets, rapid weight loss and liquid diets can result in a lack of amino acids, biotin, iron, protein and zinc— all of which are essential for healthy-looking hair.

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