Dr. Kristen Gill Hairston, MD, MPH, FAHA, is Co-Founder of Healthy Self, PLLC, and known as The EndocrineKNOWLEDGist™. A board-certified endocrinologist, researcher, educator, and speaker, she merges hormone and metabolic science with leadership strategy to help professionals thrive with energy, clarity, and purpose. With two decades of medical and academic experience, Dr. Hairston translates complex science into actionable insight—showing how physiology fuels performance. Recognized for her engaging style and evidence-based wisdom, she empowers audiences across industries to transform wellness into a leadership advantage that inspires sustained success.