Ah, death and disease, mankind's greatest obstacles to reaching its full potential. Picture a future where people's bodies were healthy enough to withstand famine, drought, and mutant viruses. Imagine where our technology would be if great scientific minds like Albert Einstein or Nikola Tesla were still alive.
Over the last century and more, medical science has certainly tried to help people live longer -- if not forever -- but as Popular Science has witnessed, the greatest advancements in science have occurred only after some trial and error. Unfortunately for the human subjects of the error.