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Here is another mark against sugary drinks: A new study has found that drinking them is associated with lowered age of menarche. Age of first menses has decreased substantially since the early 20th century, and studies have shown that younger age of menarche is associated with increased risk of breast and endometrial cancer in later life. [Snip] After controlling for birth weight, maternal age at menarche, physical activity, and many dietary and behavioral factors, [researchers] found that girls who drank one-and-a-half 12-ounce cans a day of nondiet soda or sugared iced tea had their first period an average of 2.7...

A Stanford scientist has spelled out for the first time the direct links between increased levels of carbon dioxide in the atmosphere and increases in human mortality, using a state-of-the-art computer model of the atmosphere that incorporates scores of physical and chemical environmental processes. The new findings come to light just after the Environmental Protection Agency's recent ruling against states setting specific emission standards for this greenhouse gas based in part on the lack of data showing the link between carbon dioxide emissions and their health effects. While it has long been known that carbon dioxide emissions contribute to climate...

CHICAGO - Inappropriate advertising contributes to many kids' ills, from obesity to anorexia, to drinking booze and having sex too soon, and Congress should crack down on it, the American Academy of Pediatrics says. The influential doctors' group issued a new policy statement in response to what it calls a rising tide of advertising aimed at children. The policy appears in December's Pediatrics, scheduled for release Monday. "Young people view more than 40,000 ads per year on television alone and increasingly are being exposed to advertising on the Internet, in magazines, and in schools," the policy says. Advertising examples cited...