"I am brave:" Be inspired by 5-year-old Hannah who created a cancer "commercial"

(WITI) -- Children should never have to face life-threatening diseases like cancer, but they do. And every now and then, a child like five-year-old Hannah comes along and inspires thousands.

Hannah was diagnosed with bilateral Wilms tumor (kidney cancer) in February 2014 and treated at Rady Childrens Hospital in San Diego. She underwent six months of chemotherapy, radiation to her lungs and flank and surgery to remove her left kidney and part of her right kidney.

According to the YouTube post, Hannah understands what's going on and knows what's needed to fix it. She approached her parents and said she wanted to do a "commercial" to explain to other kids what they can expect when going through cancer and show them "how brave" she has been. The result is below.