WASHINGTON (AP) -- Researchers are struggling to explain the latest findings on newborns' birth weight.
A Harvard study of nearly 37 million births shows U.S. newborns were slightly lighter in 2005 than in 1990 -- a surprising find as the obesity rate soars. The study published in the journal Obstetrics & Gynecology ends a half-century of increasing birth rates.
While the drop is less than 2 ounces, researchers are puzzled as to why it happened. Premature births as well as twins and multiples were excluded from the report. The lead researcher in the study says babies are still bigger than they were a few decades ago, but the trend appears to have flatlined.
An adviser to the March of Dimes says it's too soon to tell what the drop means, but that there should be vigilance about any decline in birth weights.
A new line of caffeinated chewing gum is causing jitters among health advocates and prompting federal officials to take a new look at the proliferation of jolt-infused foods, including those marketed to children and teens.
Stress, the slowing of metabolism of middle age, and hormone changes after having a baby are three main reasons why many people see the numbers on the scale going up. Dr. Mehmet Oz shares tips on how to shed those final 10 pounds.