When Sara Jane learns that Traditional Chinese Medicine has been linking oral health to whole-body wellness for thousands of years, she calls in Dr. Chrystle Cu—dentist, entrepreneur, and cofounder of Cocofloss (now Cocolab)—to unpack the mouth–body connection.

From boar-bristle toothbrushes to herbal tooth powders, tongue scraping, and even jaw tapping, they test ancient TCM dental rituals to see what still works today. Plus, the foods and herbs that can boost your oral health, digestion, and maybe even your lifespan.