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

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 ...

Sign up to receive the Woman's Day e-Newsletter and offers we choose to share with you straight to your inbox The pair, who live in Centralia, Illinois, suffer from ...

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.