Research shows that sleeping in total darkness allows your body to produce as much of the hormone melatonin as possible. This is good because when your production of melatonin drops, you are at greater risk of breast and/or colorectal cancer and other health risks.
For years, doctors and medical researchers have been puzzled by the fact that African-Americans are more likely to die from lung cancer than people of any other race or ethnicity, although they are not more likely to smoke. How could this be?
September 2013. The most popular screening test for ovarian cancer, the CA-125 test, by itself is not a good screening tool for ovarian cancer. When used alone on women with no symptoms or previous history of ovarian cancer, it leads to many false positives. Among women who have already been treated for ovarian cancer once, it doesn’t seem to improve length of quality of life.