Founded in 2001 by Dr. Habib, Next Health was built on a simple but powerful concept: fitness, medical care, and nutrition all under one roof. Dr. Habib integrated lifestyle medicine into clinical practice long before functional medicine became mainstream. This approach produced dramatic, measurable outcomes including sustained weight loss, improved metabolic health, reduced fatty liver, and improved cholesterol levels, especially triglycerides. He later coined the term Rethink Medicine to describe a data driven approach to complex medical problems, using objective metrics to confirm progress and optimize health, including tracking and, in select cases, reversing biological age markers such as DNA age.