Recent episodes

Life Expectancy Declines for Poor Women in U.S. Women living in America's poorest counties have seen their average life expectancy decline in recent years. New research shows that the gaps between the best-off and worst-off groups are widening — as much as 18 years between the two — in connection with smoking, high blood pressure and obesity.

Advances in Gene Therapy Treatment for Blindness Researchers using a gene therapy technique to treat one form of congenital blindness have reported some success. Two teams of scientists have used modified viruses injected into the eye to partially restore vision to people who have Leber congenital amaurosis, an illness that results in the degradation of the retina.

U.S. Carbon Footprint Difficult to Reduce According to a new survey, even the people in the U.S. with the lowest energy usage have a carbon footprint about twice as high as the average global citizen. What changes can an American make to have a significant effect on emissions?

Peering into the Human Brain with fMRI Techniques What's really going on inside your head when you make a decision, make a mistake, or have a few drinks? Researchers are using fMRI techniques to monitor blood flow through the brain and are hoping to shed light on the mysterious inner workings of the human mind.