It might sound like science fiction, but there’s a new test available that can actually detect colorectal cancer in a way similar to how a breathalyzer test can detect whether or not a person has been drinking alcohol. The test works because a person’s breath functions similar to the way the exhaust in a vehicle works. That is to say, there are many different chemical compounds that are given off, and tests can tell by the makeup of these compounds exactly what is going on inside the body. More research is underway to develop similar tests that will be able to detect lung cancer, breast cancer, and prostate cancer, along with other types of cancer.
P.S. Breath has long been used to determine health. For example, uncontrolled diabetes gives off a fruity smell, and liver or kidney failure emits a fishy odor.