In this video I explain why the active ingredients of a plant can have such an effective effect when vaporized with a vaporizer. If you want to read more about it in more detail and in a more scientific way, I recommend this book: Phyto-Inhalation, Medicinal Herbs and Vaporizers, Introduction to Gentle Inhalation, Editor: Frank Fuchs, Publisher: Der Grüne Zwei 218