The mothers of highly intelligent children where at a much higher risk of postnatal depression. The sample size was small, but it could indicate that there is

The mothers of highly intelligent children where at a much higher risk of postnatal depression. The sample size was small, but it could indicate that there is a connection in older ages. I am not sure how much of the measured intelligence in small children is related to their adult intelligence, and how much is variation in development that might even out.