When Martha Carlin's 44-year-old marathon-running husband was diagnosed with Parkinson's disease in 2002, she applied her auditor's mindset to examining the evidence behind this "old person's disease." What followed was a remarkable 20+ year journey from studying food toxins to pioneering targeted probiotic therapies. In this episode, Martha shares how she discovered the connection between gut bacteria and Parkinson's symptoms, developed probiotics that significantly improved her husband's condition, and is now working on therapies for Crohn's disease and post-antibiotic gut restoration. She also reveals the hidden dangers of glyphosate, explains why the "magic bullet" approach fails for complex diseases, and discusses the future of microbiome medicine.