TOMBALL, TX -- Sienna Bernal is a tiny girl with a big voice making a difference by standing tall. The 16-year old Tomball resident recently spoke at a town hall meeting with U.S. Rep. Kevin Brady ...

Sienna and Sierra Bernal hold two world records, but they tell PEOPLE it's kind of funny to be recognized just for existing Sienna Bernal and Sierra Bernal, 23, of Tomball, Texas Growing up, Sierra ...

As a young girl, she was diagnosed with a rare form of dwarfism, which impacts her both mentally and physically.

Sienna and Sierra Bernal of Tomball are identical twins, but no one would ever guess it: Sierra looks like most other 11-year-olds, while Sienna is a primordial dwarf. She’s three-feet-ten and 27 ...

A clever use of CAD/CAM technology brought a smile to a patient with primordial dwarfism, a group of disorders in which a person experiences delayed growth, resulting in small body size and numerous ...

Sienna and Sierra Bernal hold two world records, but they tell PEOPLE it's kind of funny to be recognized just for existing Anna Lazarus Caplan is a writer-reporter for PEOPLE. She has been working at ...

Growing up, Sierra Bernal was captivated by Guinness World Records. “I would always read records and be like, ‘Oh, these are so cool,’ ” the 25-year-old aspiring singer and songwriter tells PEOPLE.

Sienna and Sierra Bernal hold two world records, but they tell PEOPLE it's kind of funny to be recognized just for existing Growing up, Sierra Bernal was captivated by Guinness World Records. “I would ...