Abbie Smith-Ryan, PhD, CSCS*D, CISSN, is a Professor at the University of North Carolina Chapel Hill, specializing in research related to body composition, sports nutrition, and high-intensity interval training. She is a scientific advisory board member for the ISSN, NSCA, and for the Center for Applied Health Sciences. She also practices what she preaches as a former collegiate athlete and an advocate of healthy physiques. You can follow her for the most up-to-date research on pubmed.org and www.twitter.com/asmithryan.