There's a study out of Norway that makes a great deal of sense.
Firstborn sons have higher IQs than their younger brothers, and their social status within the family may explain why, researchers reported on Thursday.
A study that used military draft records for more than 240,000 Norwegian men found that firstborns had an edge of 2.3 IQ points on their next oldest brothers, who in turn beat brothers born third by 1.1 points on average.
The proof is in the Norwegian pudding. You just can't argue with the obvious.
