There is no direct evidence to suggest that air conditioning (AC) causes hair loss. Hair loss can be caused by a variety of factors, including genetics, hormonal changes, medications, certain medical conditions, and poor nutrition.
However, prolonged exposure to dry air, which can be caused by air conditioning, may cause hair to become dry and brittle. This can make the hair more prone to breakage and damage, which can make it appear thinner. Additionally, if the air conditioning is not properly cleaned and maintained, it can circulate dust and other allergens, which may contribute to skin irritation and scalp conditions that could indirectly lead to hair loss.
In summary, while there is no direct link between AC and hair loss, prolonged exposure to dry air and poor air quality could indirectly impact the health of your hair and scalp. It's important to maintain proper air conditioning maintenance and take steps to keep your hair and scalp healthy, such as regularly washing your hair, using a moisturizing conditioner, and avoiding harsh hair treatments.