Researchers analyzed medical data from over 110,000 women aged 45 to 80 with a body mass index of 25 and above. About 13.7% of participants were prescribed GLP-1 drugs, which mimic the action of the hormone that regulates appetite and blood sugar levels. Comparison of medical indicators showed that women taking such drugs had a 30–35% lower risk of developing breast cancer compared to participants in the control group. To exclude the influence of external factors, scientists additionally matched data on age, race, body mass index, and the presence of diabetes. Even after such adjustments, the results remained virtually unchanged. ### Why Drugs May Protect Against Cancer Excess body weight, especially after menopause, is considered one of the significant risk factors for developing breast cancer. Therefore, part of the protective effect is attributed to weight loss. However, specialists suggest that it is not only about this. It is known that GLP-1 drugs can reduce chronic inflammation in the body, which may contribute to the development of tumor processes. Additionally, they affect metabolism and epigenetic mechanisms—processes that regulate gene activity without changing the DNA structure itself. Scientists do not rule out that it is the combination of several biological mechanisms that provides additional protection to the body. ### It Is Too Early to Talk About Cancer Prevention Despite the encouraging results, specialists emphasize that the study was observational in nature. It shows a statistical association between drug use and reduced disease risk but does not yet prove a direct cause-and-effect relationship. Special clinical studies will be required for definitive confirmation of the effect, which will establish whether GLP-1 drugs can be used not only for weight control and diabetes treatment but also as a means of preventing oncological diseases. Popular weight loss drugs continue to surprise scientists with new potential benefits. If further research confirms the obtained data, GLP-1 class medications may become an important tool not only in the fight against obesity and diabetes but also in the prevention of one of the most common types of cancer in women.