During prolonged exercise in hot conditions, women show greater blood flow to fat tissue under the skin of the abdomen than men, even though the breakdown of fat is similar between sexes, indicating that blood delivery to fat may be regulated differently by sex during heat stress.

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Evidence from Studies

Supporting (1)

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Fat Oxidation, But Not Subcutaneous Adipose Tissue Lipolysis, Differs Between Males and Females During a Treadmill‐Based Heat Tolerance Test

Cross-Sectional Study

Human

2026 May

When exercising in the heat, women’s belly fat gets more blood flow than men’s, even though both sexes are breaking down fat at the same rate—meaning women’s bodies may be better at delivering nutrients to fat tissue under heat stress.

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Source Study

Fat Oxidation, But Not Subcutaneous Adipose Tissue Lipolysis, Differs Between Males and Females During a Treadmill‐Based Heat Tolerance Test

Score: 45

DOI: 10.1002/ejsc.70162

Similar Assertions

When exercising in hot conditions, men and women release fat from the abdominal fat layer at similar rates, as measured by glycerol levels in the tissue, even though men burn more fat overall during exercise. This suggests that the difference in overall fat burning between sexes comes from other sources, not this particular fat depot.

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82%

During exercise in hot conditions, males produce 94 watts more metabolic heat than females, even when accounting for differences in body size.

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During a 2-hour walk in 40°C heat, physically active young men burn fat at a higher rate than young women, with a measurable difference of 0.34 grams per minute at the 30-minute mark, even though both groups show similar levels of fat breakdown in abdominal tissue and similar blood markers of fat metabolism.

45

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77%