I cause people so much physical and emotional pain.
I make their days as gloomy as the grey clouds that rain.

I make them tired, and their energy I drain.
I am ruthless and anything but humane.

I make people wish they were never born.
I make them feel somber and very forlorn.

I destroy their ability to fight everyday.
I make them lose hope in every possible way.

I tend to always make people cry.
I am a monster, but who am I?
My name is Cancer.