>>10313392>Those with an average Shnelf of 125 live longer, on average, than those with 100>Those with an average Shnelf of 125 make more money than those with 100>Those with an average Shnelf of 125 commit less crime than those with 100
This applies to just about everything on the list, but there is supposedly something to reaction time and IQ so I stopped it there. People with mutations in the right (well wrong) places will develop sub-normal intelligence. However, many such mutations also affect cardiac health and development, kidney health and development, connective tissue health and development... just about any other system of the body you can think of.
Somebody with such a mutation is more likely to have a low IQ BUT ALSO have poor life expectancy, health, ability to pursue goals because they also have other shit going on. This is known as a confounding variable. Will everyone with low IQ have it for this reason? No. But many will, and they will contribute to the appearance of these "trends". Will everyone with some kind of mutated gene always have low IQ? No, but they could still have heart defects etc. and have those sorts of things hampering their ability to pursue a career or what not.
In other words don't draw conclusions too readily. If you think you can pursue something and the opportunity is presented to you and you want to do it, just go ahead and try.