There are only a few levers to adjust in the growth of a human being. Mostly it’

There are only a few levers to adjust in the growth of a human being. Mostly it’s (a) sex, (b) neoteny (c) genetic load(accumulated defects), and (d) in-utero stressors or malfunctions(including viruses etc) (e) gestation period. Then you pop out and just need to avoid trauma. 😉