Theresa Regan was born in the metro Detroit area in Michigan. She has a PhD in Clinical Psychology from Wayne State University and specializes in Neuropsychology and Rehabilitation Psychology. She is a Neuropsychologist at the Illinois Neurological Institute at OSF Saint Francis Medical Center in central Illinois.
Theresa and her husband Patrick have a son in the autistic spectrum. Her experiences working at a medical center, interacting with other parents in her community, and raising her son inspired her to write Soul Cries.