The line between food-plants and medicinal herbs is a fuzzy one. Science regularly reports newfound medicinal effects in plants once taken for granted; many fruits once thought quite plain contain some of the world's most potent anti-cancer agents. The same goes for teas - green tea is one of the most potent anti-oxidants known - and spices - cinnamon may prevent the onset of debilitating diabetes - and this list continues to grow. This same lack of distinction exists between natural fragrances and therapeutic essential oils. The oil of a rose, laden with Citronellol, does triple duty as a perfume, an effective agent against the herpes simplex virus, and an uplifting aromatic that can help one open emotionally after a traumatizing experience.