Regular Exercise Helps Fight Heart Failure Exercise boosts the number of progenitor cells in people with heart failure, and those cells in turn repair and rebuild weakened muscle and blood vessels, researchers report. To learn more, visit this month's fitness section.

Kids Who Skimp on Sleep Tend to Be Fatter While the connection between a child's weight and the amount of sleep that child gets may not be immediately apparent, new research has found a strong correlation between the two. Find out more in this month's family and home section.

Brain Yields Clues to False Memories The areas of the brain where memory is processed may determine how a person can be absolutely certain of a past event that never occurred, otherwise known as a "false memory," say Duke University Medical Center researchers. Learn more in this month's mind and body section.

Many Americans Can't Afford to Eat Right In this land and season of plenty, low-income and rural Americans continue to have difficulty finding healthy foods that are affordable, a new study finds. Learn more in this month's nutrition section.