Radiation has changed over the years , exposing the heart to lower doses. Studies have shown the treatment reduces the risk of cancer recurrence and
Researchers in Boston found vitamin D supplements can lower blood pressure in African Americans. The study looked at 250 black adults who took the vitamin daily for three months. The results showed the more vitamin D a person took - the lower their blood pressure. African Americans have the highest rate of hypertension in the U-S.
And, playing video games may actually be good for your health. Researchers in Singapore found gaming can enhance your cognitive skills. They say people in their study who played games for an hour a day for a month on their cell phones increased their mental ability - for example action games helped people track multiple objects.
(Ines Ferre, for CBS News)