Everybody does die, just as you get older you start noticing the rate increases. Seems like everybody I know is dying or dead, mostly of cancer. Centuries ago you dies of other things, like disease, injury, war or famine. Now there are cures for many diseases, there are antibiotics and the revolution of biological life causing illness, surgery and anesthesia along with blood transfusion and such for surgery, relatively good levels of peace leaving people to get older and live longer.
Sadly as you age those things that were once rare, dementias and cancer, seem to be on the rise.