Some parents are weary towards vaccinating their little ones early on in life. Sometimes.. although very rare.. some freak things have been reported. In Danni's case, she grew at a rapid pace, and now at only age 15, she's already broke every world record in strength, as well as in size and weight and height.. she's the biggest, strongest girl in the whole world. She lifts cars like they're practically light as a feather. Her step-mom even had to go as far as to register Danni's hands as weap0ns, as they're so big and strong they are considered dangerous to others.