Can your hair fall be linked to cold weather? Know what triggers it

Dry air: One primary factor contributing to increased hair shedding in winter is dryness in the air. Cold temperatures, along with lower humidity, can lead to drier skin and scalp. This dryness can result in scalp irritation, dandruff and a disrupted hair growth cycle. The scalp’s natural oils, which are essential for keeping the hair healthy, may be stripped away more easily due to reduced sebum production in colder weather.

Heating devices: Additionally, harsh indoor heating systems further exacerbate dryness, making the scalp more prone to flakiness and inflammation, which can, in turn, contribute to increased hair fall.

Headgear: During the colder months, people tend to wear hats, scarves, and other head coverings more frequently. While these can protect from the elements, prolonged friction or tightness from these accessories may lead to a condition called traction alopecia, where hair is pulled from the roots, causing gradual thinning.

Fewer washes: Additionally, people may wash their hair less frequently, allowing the scalp to accumulate oil, sweat, and product build-up, which can clog follicles and disrupt hair growth.

Diet: During the winter, many people tend to consume fewer fresh fruits and vegetables, which could result in a drop in the intake of essential vitamins and nutrients vital for hair growth. Deficiencies in vitamins like D, E, and B-complex, along with minerals such as zinc and iron, are linked to hair thinning.

Low Vitamin D: Shorter days and decreased sunlight exposure can lead to a reduction in vitamin D levels, which have been associated with hair loss conditions like telogen effluvium, where a larger percentage of hair follicles prematurely enter the shedding phase.

It is worth noting that winter hair loss may be more of a temporary issue. Once the warmer months return, many people regain balance. However, those who experience persistent hair loss, regardless of the season, should seek professional advice, as chronic hair thinning or sudden significant shedding could be indicative of underlying conditions such as hormonal imbalances, autoimmune disorders or other dermatological conditions.

(Dr Mahajan is senior dermatologist at Indraprastha Apollo Hospitals, New Delhi)