Why is maintaining hydration crucial during pregnancy?

Maintaining hydration during pregnancy is crucial primarily because it supports the increases in blood volume that occur to accommodate both the mother and the developing fetus. During pregnancy, a woman's body undergoes significant physiological changes, including a rise in blood volume that is essential for delivering sufficient oxygen and nutrients to the baby. Proper hydration helps maintain this increased blood volume, ensuring that circulation is efficient and that both maternal and fetal health are preserved.

Additionally, hydration plays a role in other bodily functions during pregnancy, such as regulating body temperature, forming amniotic fluid, and aiding in nutrient absorption. While other factors like digestion and morning sickness can be influenced by hydration levels, the foundational need for increased blood volume during this period makes it the most critical reason to prioritize hydration.