In families with multiple children, especially boys, each child seems to develop a distinct personality. The eldest is often perceived as the most serious, the youngest as the most relaxed. What ...

First-borns have a new study to lord over their siblings. A study has found that second-born children, especially boys, are more likely to get in trouble. An MIT economist studied how birth order ...

When I was pregnant with my second child, I couldn't count the number of people who told me to “hang on — second kids are tough.” I sort of scoffed at the idea at the time. My oldest son, Sam, was ...