Many U.S. adults currently have some form of the disease.

Nearly 7% of U.S. adults experience depression in a given year.

Overall, one in three U.S. adults has high blood pressure, according to the researchers.

Nearly 15 percent of all U.S. adults read literature online in 2008.

Among US adults older than 55, 4% are taking medication and or supplements that put them at risk of a major drug interaction.

More than half of U.S. adults don't have a will.

Overall, more than 1 in 4 U.S. adults has experienced low back pain.

The data came from nearly 44,000 civilian U.S. adults who were interviewed in person between 2001 and 2002.

Do you know what causes the most blindness in U.S. adults?

Dietary magnesium intake in a national sample of US adults.