This easy to use text provides practitioners and researchers with a global view of current and emerging issues concerned with successful pregnancy outcomes and approaches that have been successful or show promise in ensuring a successful pregnancy.  The fully updated and revised second edition expands its scope with topics not covered in the first edition including pregnancy and military service; sleep disorders during pregnancy; the gut microbiome during pregnancy and the newborn; requirement for vitamin D in pregnancy; the environment contaminants and pregnancy; preeclampsia and new approaches to treatment; health disparities for whites, blacks, and teen pregnancies;  depression in pregnancy role of yoga; safe food handling for successful pregnancy outcome;  relationship of epigenetics and diet in pregnancy; caffeine during pregnancy; polycystic ovary syndrome;  US Hispanics and preterm births; celiac disease and pregnancy; cannabis use during pregnancy.