its fairly weak against, say, being stabbed or hit by a bus. But lets say you could somehow coat the cytoskeleton in nanoscopic layers of carbon fiber. There are literally trillions of cells in your body, and this would make each one capable of withstanding a fall from a skyscraper.......
Certainly some kind of exoskeleton is necessary. Your cells simply aren't strong enough.
Or are they?
Brain wave!
If you could somehow....oh this is good, I deserve an award for this....ok, basically, inside your cells is something called a cytoskeleton. This is a biological structure that gives the cell its structure. As you can imagine, given the size of the cell, its fairly weak against, say, being stabbed or hit by a bus. But lets say you could somehow coat the cytoskeleton in nanoscopic layers of carbon fiber. There are literally trillions of cells in your body, and this would make each one capable of withstanding a fall from a skyscraper. You'd be like Thor in the avengers. Or the Hulk.
That might work. Try it? Let me know how it goes.
Uhh hahah, well if someone knew (let alone people on yahoo answers) then I think they either would keep it a secret or the whole world would know.
I say try and live as long as you can and hope science brings us an answer.
Anyway to answer you question I guess work out, become muscular, perhaps were the strongest wear-able armor available. Look into spider silk, I am unsure where that product currently is but it is believed to be the gateway to the strongest and lightest material ever before.
Additionally Invincible could also mean to be untouchable, as in live in a heavily fortified place with self programmed robotic guards and the most high tech security system known to mankind. That should make you invincible!
Though I guess to truly be invincible you must withstand any and everything. I guess death is the answer, for if you are dead you can not be killed?
There are some people who's ready to pay TRILLIONS to get that formula, and you're asking for it on Yahoo Answers...
Well, I think that you should try eBay, that's were it should be..
If there's such a thing!