A hero is an ordinary individual who finds the strength to persevere and endure in spite of overwhelming obstacles. -Christopher Reeve (Superman)
  
A hero is just like any other person. In my opinion, the only difference between an average human and a hero, is that a hero will find ways to persevere even in the toughest hardships, while an average human, will suffer for quite a while; asking themselves why a specific thing had to happen. A hero would realize that things happen. That if they stay in that specific time and pain, they're simply wasting time & not going anywhere when they could be out in the world finding ways to prevent that specific event or situation form happening once more.