嘿，

Progeria- A rare disease that makes the patient look much older than their true age. And it also causes several complications that can shorten a person's lifesapn.

Sam was diagnosed with Progeria when he was only 2. In spite of encountering innumerous difficulties, he still had an optimistic attitude towards life.

"I try not to waste time feeling bad for myself, because when I do, there's no room for happiness." Sam said.

How brave he is. :'(

Thanks to Sam for teaching me a lesson. God bless you.