We already have human growth hormone, testosterone, igf etc that can make your body heal and recover like a younger person atleast for sometime. You can also c

We already have human growth hormone, testosterone, igf etc that can make your body heal and recover like a younger person atleast for sometime. You can also chose to have one child or 4 children. Just depends: do you get more happiness from 1 pampered child, or 4 modestly raised children.