That pesky kid brother or sister who broke your stuff and got you in trouble all the time may have actually done you a favor. A U.S. study suggests that younger siblings might be really good for your health.
That’s because by first grade, kids with younger siblings are much less likely to be obese.
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 . . .
