RadioMD News... I'm John Byrd.

Getting cancer a second time is on the rise in the U.S. Nearly 1 in 5 cases now involves someone who has had the disease previously, but with a different tissue type or in a different location. As strange as it may sound, it's a testament to the success of treatments that patients survive long enough to get it again.

Researchers have developed a new drug that may be able to protect against nuclear radiation poisoning. The single-dose injectable treatment can counter the life-threatening effects of radiation if taken within 24 hours of exposure. The countermeasure would give victims time to reach facilities for advanced medical care. 

And... happiness is... being single? Despite popular myth that suggests only people in relationships are happy and fulfilled, a new study finds for some, being single is the key to their mental health. Because of their temperament or preference to avoid the conflict and drama found in relationships, single people can be just as contented. And the number of people choosing the single life is on the rise. As the saying goes, different strokes for different folks.

For RadioMD News, this is John Byrd. Hear health talk interviews with top experts at RadioMD dot com.