Child Frozen In Time ''Dateline NBC'' reports on Brooke Greenberg, a 16 year old who has remained the size of an infant. Her case is unique, and scientists are researching her to determine if the fact that Brooke has not aged holds the secret to eternal youth. Her mental age is estimated to be 9-12 months old, and her physical size is that of a 6 month old. The video features Brooke's every day life of shopping trips in a stroller, rather than the normal activities you'd expect of a 16 year old. [ame]http://www.youtube.com/watch?v=ghlT_zNYl60[/ame] Brooke Greenberg has presented more medical mysteries than just failing to age. She recovered spontaneously from 7 perforated ulcers, a brain seizure, a stroke, and when she was 4 she was diagnosed with a brain tumor that disappeared without treatment.