Sensitivity to cold fluctuates throughout the month. Following ovulation, progesterone levels rise, increasing the core body temperature. This higher internal temperature makes external air feel colder by comparison. 2. Body Composition and Metabolism

Women typically have a lower basal metabolic rate (BMR). A slower metabolism produces less heat, making it easier for the body to lose warmth faster than it can be generated.

Physical differences in how the body generates and retains heat significantly impact perceived warmth in the legs.

While women often have a higher percentage of body fat, this fat is frequently subcutaneous (under the skin). This layer acts as insulation for the core but can actually prevent internal heat from reaching the skin surface , leaving the outer layers of the legs and feet feeling icy. 4. Underlying Medical and Lifestyle Factors