Did You Know?

Parental Predictions How couples manage parenting responsibilities when their child is 6 months old predicts the quality of their marriage when the child is a pre-schooler. Couples whose relationship was fine when their child was an infant, but who differed over parenting issues, were particularly likely to report marital woes a few years later.

Bone Up On B-12 Low levels of vitamin B-12 in older women are a recipe for rapid bone loss and fractures. Vitamin B-12 is found naturally in animal products such as meat, shellfish, milk, cheese and eggs. Simple dietary supplements or multivitamins may slow the rates of bone loss.

All About Your Mother A Mom, but not a Dad, with heart disease increases your risk of developing coronary heart disease. Doctors have long known that family history predicts the condition, but a recent study found having a mother with the disease at age 55 or younger sextupled the risk in offspring. A father's history had no effect—unless he had the disease before age 45.

77.4 In years, the average life expectancy for a person born in the United States—up 73 days to a record high. Males still lag a few years behind females, and whites tend to live longer than blacks. In 1900, a person born in the U.S. was expected to live only 47.3 years. The oldest person on record died in 1997 in France, at 122.

Tags: 3 years, animal products, average life expectancy, bone loss, coronary heart disease, dietary supplements, eggs, family history, females, heart disease, life expectancy, multivitamins, offspring, parenting, vitamin b 12, vitamin B-12