One Day In My Body

Tiffany has progeria, and Ryan was born with Arthrogryposis.

To save Loren's life after a catastrophic forklift accident, doctors had to cut him in half. Sofia was an active 29-year-old when her heart went into end-stage failure.

Lukas has Parry-Romberg Syndrome, causing half his face to shrink inward. Steffni's rare muscular dystrophy leaves her dependent on her mother.

An allergic reaction left Kirtus with vitiligo, alopecia, and bone loss. Portia's rare skin condition may exist in fewer than 25 people worldwide.

There are only two foods that won't send Caroline into anaphylaxis. Touching almost anything causes Ariana's "butterfly skin" to blister and tear.

New prosthetics may be housebound Zahra's ticket to freedom.