If he doesn't get some alone time [after birth] with the baby, however, the daddy brain won't develop fully.
如果他不能够在婴儿出生后，有一些时间单独地与婴儿相处，他的父亲大脑将不能完全发育。
2
Enter the sugar daddy, sugar baby phenomenon.
于是便出现了所谓的“糖爹”和“糖妞”现象。
3
Therefore his brain is being primed to be a caretaker. If he doesn't get some alone time [after birth] with the baby, however, the daddy brain won't develop fully.