Experts explain why hair can fall out during the rainy season

Although it is often believed that air pollution increases the risk of respiratory diseases, health experts have warned about a more serious threat. Recent studies have shown that tiny particles, such as PM2.5, affect not only the respiratory system but also have a direct impact on hair and scalp.

Impact of Microparticles on Hair

These fine particles are so small that they easily penetrate the hair follicles on the scalp, leading to hair loss problems and deterioration of hair quality. In this regard, doctors have advised taking several precautions.

Oxidative Stress and Hair Weakness

Dr. Samir Bansal, a pulmonologist and respiratory medicine specialist from Apollo Hospital in Bangalore, noted that PM2.5 is not ordinary dust. Its size allows it to overcome the protective barriers of the nose and upper respiratory tract, reaching deep parts of the lungs. He emphasized that one should not limit oneself to symptoms like coughing or breathing problems, because the 'inflammatory load' of pollutants affects other organs, causing oxidative stress and inflammatory reactions in the body.

Dr. Vivek Anand Padegil, Director of Pulmonology at Fortis Hospital in Bangalore, added that although people consider PM2.5 harmful to the lungs, it is becoming evident that it also affects hair follicles. Prolonged exposure to pollution provokes inflammation and oxidative stress on the scalp, which can lead to hair loss, thinning, and general deterioration of scalp condition.

Scalp Inflammation and Structural Damage

According to a report by the National Center for Biotechnology Information (NCBI), pollution microparticles increase the amount of free radicals in the body. These radicals damage the protein composition of hair roots, making them not only weak and dry but also accelerating the process of their shedding.

According to The Mint, the negative impact of pollution is not limited to hair length. Specialists point out that harmful components in atmospheric pollution cause inflammation on the scalp. When a layer of dirt and toxins accumulates on the scalp, it disrupts the function of the hair follicles, depriving the hair of necessary oxygen and nutrients. The consequence of this is premature hair thinning, as well as frequent problems such as itching and dandruff.

Systemic Health Risks

Drs. Bansal and Padegil fully agree that atmospheric pollution has turned from a problem of one organ into a 'systemic health risk' affecting the entire body, including hair. The accumulation of dirt on the scalp due to pollution makes it sensitive. If this problem is not addressed in a timely manner, it leads to weakening and thinning of hair roots.

Prevention Recommendations

To counter this problem, experts advise covering hair with a scarf or cap when going outdoors. After visiting polluted areas, it is recommended to wash hair with a mild, sulfate-free shampoo to prevent dirt accumulation. Furthermore, consuming foods rich in antioxidants and maintaining a balanced diet can help protect hair roots from pollution exposure.

The common belief that cutting or shaving hair makes it thicker and stronger has led many people to engage in such practices. However, this long-standing assertion lacks scientific basis, and experts state that shaving does not affect hair growth or quality in any way; it is merely a misconception.

Reasons for the Sensation of Thickness

According to Mayo Clinic, the feeling of increased thickness after cutting or shaving arises from how the hair tip is formed. When hair is cut with a razor, its end is cut flat and blunt. In contrast, the natural ends of long hair become thinner and softer, whereas new hairs cut by a razor have a sharp edge, which creates an impression of greater density and roughness upon touch.

Hair Growth Mechanism

Cleveland Clinic states that hair growth occurs not on the surface of the scalp, but inside it, within the hair follicles. Shaving only removes the hair that is above the skin and cannot reach the internal follicles where hair is formed. Therefore, shaving does not change the thickness or growth rate of the hair. The actual structure of the hair is determined by a person's genetics, diet, stress levels, and hormonal health.

Visual Change in Hair Color

New hairs may appear darker than old ones. This is because hair that we wear for a long time is exposed to sunlight, dust, pollution, and styling products, causing it to lighten. When hair is shaved, the new hair is fresh and has not been subjected to external influences, so it retains a more saturated, dark color, which gives rise to the mistaken idea that the hair has become thicker and coarser.

Expert Care Advice

Hair experts strongly recommend that shaving is not a solution for hair loss or thinning problems. Improper shaving can cause scalp irritation, nicks, or ingrown hairs. For real improvement in hair condition, one should increase protein intake in the diet, reduce stress levels, and consult a dermatologist.