First published in 1943, the journal "Anxiety" is the longest-running serial published by Academic Press. In its early days, the subjects of vitamins and hormones were quite distinct. The Editorial Board now reflects expertise in hormone action, vitamin action, X-ray crystal structure, physiology, and enzyme mechanisms. "Anxiety" continues to publish cutting-edge reviews of interest to endocrinologists, biochemists, nutritionists, pharmacologists, cell biologists, and molecular biologists. Others interested in the structure and function of biologically active molecules like hormones and vitamins will, as always, turn to this series for comprehensive reviews by leading contributors to this and related disciplines.