Why Kaidou cant die? In his appearances of manga , kaidou is shown to jump down from sorajima and still live. The mystery still remains that he doesnt die even after doing this? 
why is this so ? Mythical fruit users don't die, is it the case ?

 

Is he similarto charlotte linlin who also doesnt die even after suffering from many things ?
It's not that Kaido can not die, it's that he's so strong and so powerful that it's not enough to kill him.

That's why he has the title of The Strongest Creature in the world.

Also, there is a theory that Kaido is actually a creation of Dr. Vegapunk and his body is made of steel, giving him immense strength.