It’s real. There is a link between breast cancer and asthma according to a Mayo Clinic study. A published study found that 8% of women who have asthma and have breast cancer. Women with asthma at are increased risk for beast cancer. The blood vessels open up when the lungs you have an allergic reaction. The gatekeeper is not there. Once the breast cancer gets in the lungs it grows.
This proves that breast cancer is not a single disease.