Immunity to all diseases, known and yet unkown
Increased brain capacity, and understanding to go with it,
Ability to regenerate lost limbs or organs.
Funny enough the one thing I would not upgrade is life expectancy.
The population is already out of control, and why I believe being healthy while alive is a good thing I wold not want to have humans live for thousands of years. Imagine the wars, the famines, the destruction that would come about if this were the case. Dictators and despots never dying, armies with the abilities described above, war would become never ending on a planet where already there aren't enough resources to go around.
In fact I might build in a limiting factor. Between 50 and 60 years then you are done.
As comedian Steven Wright used to say
My birth certificate came with an expiry date
If I could update the human body what features would I include? there is a few to be honest.
I always find that I need either two of me or another set of hands when i am busy, so I think that I would like to have another set of arms and hands so I can do double the work.
I think that I also would like wings but there is a little problem there as I am scared of heights so that might not be the best thing to add to it.
I think that I would add an extra gene to make sure that no one ever got cancer as I think that there are a lot of good people in the world that die from this and it is not fair.
I would like to add something to the body that filters air, as pollution is getting worse and this is going to cause problems for loads of people all over the world if not everyone.
Be fireproof, would be another great factor, I had a friend who died in a house fire while he slept and this was a heartbreaking time. with the bit above he would have survived.
I think that we should only be aloud to have a max of two children per couple or per women as this would bring down the population which is spiraling out of control. I do have 3 kids so I know how this must sound but I think that the world is already over run and there is no where for anyone to go anymore. the only way to solve this right now would be another world war, and no one wants that to happen.
Ability to be invisible, fly and capability to teleport.
I really like the idea of having wings because every time when I travel in a plane and watch the world below through a window, I used to admire how big this world it. Having wings can give me that opportunity to observe this world from any higher location. But if we go for wings them our current eyes may not be enough for vision, we will need hawk eyes to observe what's going on below when we are flying.
The ability to become invisible is a nice feature that anyone can have. If we have that feature, we will be able to do so many things. But it will not be interesting if the feature is available for everyone. It should be available only when we achieve something or do some enhancements. It should not be easily affordable. But there is a high possibility that invisibility can induce lots of negative things as well. It can increase theft and abuse.
This is an excellent capability one can have. This makes it easy to travel from one place to another without any necessity to actually travel. We should be able to disappear from any place and appear in a place that we want to be. This will be a great skill to have.
I'm a simple man, with an insatiable appetite for knowledge.
I would upgrade my brain for a faster bandwidth and retention rate, as well as improved IQ, and maybe enhance an organ or two.
I would give us the power of flight.
Next I would say immunity to disease
I would also like to be able to grow back lost body parts
Then maybe something cool like laser eyes or X ray vision if we are allowed to go that wacky with the answer.