A U.S. study suggests that younger siblings might be really good for your health. Children who didn’t welcome a baby brother or sister into the family before first grade had almost triple the odds of obesity compared with kids who experienced the birth of a sibling when they were around three to four years old, the study found. The study doesn’t prove that being an only child will cause obesity or show how adding a new baby to family might help older kids maintain a healthy weight.
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Having a younger sibling may be good for your health