I don't mean bigger/smaller breats, liposuction or anything of that nature but helpful additions.
I wish that there was a reflex that'd stop you biting your tongue when eating or sneezing.
It'd be great if when you experience a pain or nausea, if your brain could tell you exactly what you need to do to fix it e.g drink more water, see a Dr, you need rest etc.
And teeth that replace themselves would be wonderful.
Oh and if you could get a period over with in an hour or at least one day, that'd be great.
What modifications would you make?
What would you add?