DHT plays a dual role in hair growth, stimulating it at normal levels but causing hair loss when elevated. High DHT levels can shrink hair follicles, leading to thinning and dormancy, particularly on the scalp. Hormonal imbalances, especially high testosterone, can contribute to increased DHT, with insulin resistance and obesity being key factors in women, often linked to conditions like PCOS. Exploring ways to lower DHT can help mitigate hair loss effectively.