RadioMD News... I'm John Byrd.

Nitrogen from fertilizers poses a long-term health threat to our drinking water, researchers have announced. Contaminating rivers and lakes for more than 80 years, dangerous levels would still exist for decades even if farmers ceased using them immediately.

The expiration of a Gleevac patent for a cancer drug could save U.S. patients millions of dollars, finds a new study. Using a generic version is expected to cost $6,000 per year instead of the current cost of $60,000 per year. In Canada, a nearly 90% drop in price was observed.

And... 'cold turkey" might be the best method for quitting smoking? New research suggests quitting abruptly nets better results than a gradual approach. In fact, nearly 10% better. That's impressive because quitting is no mean feat. Nicotine is as addictive as heroin or cocaine, say experts. Every year, some 400,000 Americans die of smoking-related illnesses. Something to think about when you decide to kick the habit for good.

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