technology = medicine why

Well for one there's the fact that we have no idea if its even POSSIBLE to cure those kinds of things. As far as I know, the only thing we know we can cure is bacterial disease, and also disorders with gene therapy. All they can do is enhance the treatment, which takes a lot of testing to do. Besides, the public seems more interested in things like better mp3 players and better resolution on their tv's.

We've found ways to prevent them, not cure them. As far as I know, you can make someone never get polio, but you can't take it away once they have it. Cancer can go into sleep mode, but can't be cured. We HAVE increased life expectancy, I know that, that's because we give out many vaccines and have built up loads of immunities. It's also because of increased sanitary awareness. The black plague happened because people werent sanitary. Cancer victims live longer because of better treatment. We didnt even know what cancer was forty years ago.

stem cell
n.

An unspecialized cell that gives rise to a specific specialized cell, such as a blood cell.

They can replace bad cells with them Embryotic ones are so popular because they can take the form of whatever type you put it with, whereas adult ones already have a set type.