(National Cancer Institute)

There's more evidence that most men don’t need an annual prostate cancer screening.

Washington University chief urologist Dr. Gerald Andriole has been leading a clinical trial involving more than 75,000 men over the age of 55.

The study has tracked the men for over a decade, to see whether getting an annual prostate-specific antigen, or PSA test, makes someone less likely to die from prostate cancer.

Women who are diagnosed with breast cancer may soon be helped by a discovery made in 1880 by Alexander Graham Bell.