[grovulent]

Yeah - living long enough to reproduce in modern times is easy enough now - but it wasn't back in the day.

I do wonder if survival back in the day actually required the level of risk taking that adhd people are capable of. If you stayed in one place - maybe you ran out of food - things like that.

[walterbell]

An important factor is the age of the mother at the time of her first child. If this age is earlier than the general population, there will be more generations in a given calendar time period. E.g. risk-seeking behavior among females could lead to early motherhood, which could be repeated in the child.