This chapter covers the everyday health habits that partners and family can help with. It starts with hydration, explaining why pregnant women should drink 8 to 12 cups of water a day and how water supports digestion and amniotic fluid. It then addresses exercise, noting that older advice to avoid it during pregnancy has been shown by newer evidence to be false. Nutrition follows, with an explanation of how certain foods supply the vitamins and minerals needed for the mother's health and the baby's development. The chapter also looks at cravings and aversions, how quickly they can change, and how flexibility and preparation help.