In this episode we discuss both ends of the digestive tract and discover their importance in the whole process of digestion and elimination. Furthermore, we find out how they relate to each other. We also hear about the French and Japanese bidets. Doctor Gianluca Gambarini educates us about the importance of the mouth and teeth in digestion and elimination and informs us about dental services offered as part of the Italian National Health Service. Doctor Domenico Mascagni spoke with me about the reciprocal relationship between the health of the rectum and anus and digestion and elimination. Marc-Antoine Senechal tells us about the French bidet and Yumi Aikawa shares her perspective on the Japanese bidet.