Little girl with a rapid-aging disease receives a miracle!

Two little girls, Lindsay and Kaylee, were born with a rapid-aging disease called progeria.

They are incredible and from the time you see them in this heart-warming video, they'll steal your heart too.

The disease has baffled doctors for years as it's a rare genetic condition that causes a child's body to age fast.

Most kids with progeria do not live past the age of 13, and the disease affects both sexes and all races equally. It affects about one in every four-million births worldwide.

Watch the inspiring video of Lindsay and Kaylee below...