Carbon monoxide has been found to shrink tumours and improve the effectiveness of chemotherapy in treating cancer.
Small doses of carbon monoxide, a toxic gas that emits from faulty car exhaust pipes, were able to change the metabolic state of cancer cells so that they consumed more energy. This effectively tires out the cells to the extent that they can no longer survive.
Carbon monoxide also amplifies the toxic effects of chemotherapy drugs to accelerate cancer cell death.
Read more at Beth Israel Deaconess Medical Center