Hariom Yadav (IMAGE) University of South Florida (USF Health) Caption Study principal investigator Hariom Yadav, PhD, directs the University of South Florida Microbiome Research Center housed at the USF Health Morsani College of Medicine. He studies how interactions between the gut microbiome and the brain might influence brain health and age-related cognitive decline. Credit USF Health/University of South Florida Usage Restrictions Please use photo with appropriate caption. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.