Health

NPR - Central Appalachian veteran underground coal miners are experiencing an incurable and fatal lung disease at the highest rates recorded in nearly 50 years, according to the National Institute for Occupational Safety and Health. Miners who have worked underground for at least 25 years in Kentucky, Virginia and West Virginia suffer the worst rates of coal workers' pneumoconiosis, also known as black lung disease. The disease's prevalence hit a low point in 1999, after Congress imposed strict limits on exposure to the coal mine dust that causes black lung. But the decline in cases has been reversed, and experts blame toxic silica dust that is now more common in mines.