inyourgenes t1_j7w2gch wrote on February 9, 2023 at 8:32 PM

Reply to comment by PlayShtupidGames in People from the poorest backgrounds are far more likely to develop a mental disorder later in life than those from wealthier beginnings. More than half of people with a low educational attainment at age 30 will have a diagnosis of a mental disorder 22 years later by Wagamaga

The opposite actually - the genetic predisposition for mental illness can’t weed itself out of the population unless it onsets before being passed on. If the predisposition is passed on and then fully manifests, then there’s a scenario where offspring grow up with both the genetic predisposition and in potentially a less-optimal environment resulting from the parent’s mental illness

PlayShtupidGames t1_j7wh48b wrote on February 9, 2023 at 10:03 PM

>The opposite actually - the genetic predisposition for mental illness can’t weed itself out of the population unless it onsets before being passed on

This is a restating of my point; I'm not sure why you're suggesting I said the opposite. Please re-read my comment in context.

If the illness does not affect mating, i.e. manifests AFTER breeding, it will not be selected out. The illness has to manifest or become apparent early enough to impact mate selection or reproductive fitness to be selected against.