Birth Order Peril: Firstborn Women More Likely to Be Obese

Second-born siblings may argue that firstborns get all the glory, but there may be a health benefit to coming in second: Firstborn women may be more likely to be overweight or obese than their later-born sisters, according to a new study in Sweden. Firstborn women in the study were 29 percent more likely to be overweight, and 40 percent more likely to be obese, compared with their second-born sisters, according to the researchers. In the study, researchers looked at data from the Swedish Birth R