Panax ginseng (Panax ginseng) revitalizes body and mind and strengthens weakness and increases resistance to disease. Astragalus (Astragalus membranaceus) strengthens energy and builds resistance to colds. Angelica (Angelica pubescens) stimulates blood circulation and warms the body. Note that diabetics should avoid this herb due to itís ability to increase sugar in the blood. Licorice (Glycyrrhiza uralensis) is a restoring and rejuvenating herb, and a general tonic for the whole body. Ginger (Zingiber officinale) helps move other herbs through the blood and increases their effectiveness.