>>515728249 (OP)
Poor unnatural lifestyle habits since childhood. There’s unironically a reason all chads play sports, is because if they aren’t physically active it’s impossible to become a chad even with top tier genes. Lots of dysgenic features are due to horrible lifestyle choices, no chin/jaw is from mouth breathing, bad jawline and frontal growth is due to lack of chewing and tongue posture. Bad neck posture causes all sorts of shifts in the face. A bad diet and inactivity can cause bad hormonal profiles which can manifest in many different ways. If someone has good habits in childhood but bad genes they tend to come out with 4/10 faces and look healthy but just a little ugly. Few dysgenic features are due to bad genes, most are due to bad childrearing. Most modern parents don’t want to be strict with their kids, so they don’t yell at them for not chewing properly or standing up straight, and this is why all these dysgenic freaks exist now.