IF IT WERE POSSIBLE TO GENETICALLY RE-ENGINEER YOURSELF ??

Everythings about good plumbing. So Id reengineer the vascular as well as the entire buccal/digestive /renal systems.

Weve got so many left over and poorly designed body features that must be remedied if we want longer more active lives.

Keep them pipes a movin, thats the ticket.

Absolutely. Right now, humans have "reengineered" themselves in a somewhat more primitive fashion, through surgery, medical procedures, and medication. Pacemakers make sure that the heart is beating normally. Artificial hips and knees replace worn out parts. Lens implants allow people who had developed cataracts to see more clearly like when they did when they were younger. Various and sundry pills allow people to regulate their organs, change their moods, and fight diease, just to name a few things.

The tools that we have now to foster these changes come at a price, and I don't mean financially, although that is a consideration. Surgery is rife with unacceptable consequences. Medications, for all the positive things that they do, come with certain side effects that are oftimes worse than the problem that the drug attempts to ameliorate.

I would suspect that in later generations,
now that the genetic code is cracked,
people will have more and more choices in the ways that they can modify
how their bodies work and look. I say, "bring it on".