Final Statement on Curses

i have come to the conclusion that can curses exist. Just today I saw an example of a type of curse. A person was wearing a helmet when they didn't need it, so later on when there helmet was off they hit their head on a door. That is proof enough curses exist, but I simply can't leave it at that, could I? Every human is condemed by the same curse, we can't not exist for ever, every human has to die. This is curse that is not exactly bad. That is my conclusion about curses you can comment if you don't agree.