Referenced in mainstream medical texts until the late 19th century and currently employed in homeopathic remedies, the Doctrine of Signatures is an ancient European philosophy that assigns healing properties to plants based on the association between their physical characteristics and those of the disease or affected body part. The red sap of the bloodroot, for instance, is said to cure diseases of the blood. According to this philosophy, what ailments are walnuts particularly suited for curing? Discuss
Source: The Free Dictionary