Doing My Bit to Prevent Prostrate Cancer

Beautiful day - nice walk over the lunch-hour. Not only did I exercise my legs, and the old heart and lungs, I may have even helped prevent prostrate cancer.

A healthy dose of daily sunshine could chop the risk of prostate cancer in half, suggests the largest study so far on UV exposure, vitamin D and prostate cancer risk.

Of course, I was walking alone, and that's not good for longetivity.

Friends, not family, are the key to a longer life, a new study suggests.