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Emory Rollins School of Public Health
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Joshua  Preston

Joshua (Josh) is a dual degree student pursuing his MD at Emory University School of Medicine and his PhD in Nutrition and Health Sciences in Emory's Laney Graduate School. He received his BS in Biology from the University of Kentucky in 2018. He completed his first three years of medical school from 2019-2022 and will begin his PhD in January 2023. Josh will pursue his graduate studies in Dr. Dean Jones' Clinical Biomarkers Lab in conjunction with Dr. Rafael de Cabo's lab at the NIH National Institute on Aging Intramural Research Program. Josh's research interests include aging, metabolomics, biomarker discovery, frailty, diabetes, women's health, nutritional interventions, tumor metabolism, and surgical applications of metabolomics. His clinical interests include trauma/ACS, critical care nutrition, geriatrics, endocrinology, and obesity. Josh has the long-term career goal of being an academic physician-scientist and aspires to practice surgery or clinical medicine while also maintaining an active, basic-science research operation.

View Resume

Areas of Interest

  • Aging
  • Biomarkers
  • Cardiometabolic Diseases
  • Chemical Exposure
  • Chronic Diseases
  • Diabetes
  • Endocrine Disruptors
  • Epigenetics
  • Exposome
  • Machine Learning
  • Maternal and Child Health
  • Non-communicable Diseases
  • Nutrition
  • Obesity Prevention
  • Rural Health
  • Toxicology
  • Women’s Health


  • BS 2018, University of Kentucky
  • MD (in progress) 2025, Emory University SOM
  • PhD (in progress) 2025, Emory LGS

Affiliations & Activities

Medical Scientist Training Program, EUSOM

MD Program, EUSOM

NIH National Institute on Aging Intramural Research Program (Special Volunteer)

Christian Medical and Dental Association

American College of Physicians