What is one major risk factor for developing gestational hypertension?

Advanced maternal age is indeed a significant risk factor for developing gestational hypertension. As women age, particularly those over 35, there are various physiological changes and an increased likelihood of pre-existing health issues that could contribute to the development of hypertension during pregnancy. These women may have a higher incidence of conditions such as preeclampsia and gestational hypertension due to age-related vascular stiffness or co-morbidities.

In contrast, the other options do not directly correlate as strongly with gestational hypertension. Low fetal heartbeat is not a risk factor for hypertension itself, but rather a potential indicator of fetal distress. Frequent mild exercise is generally encouraged during pregnancy and is associated with better overall health outcomes rather than an increase in hypertension risks. A high fiber diet is also beneficial for pregnant women, contributing to better digestive health and potentially avoiding complications like gestational diabetes, but it does not have a direct link to the development of gestational hypertension. Therefore, advanced maternal age stands out as a major and well-documented risk factor in this context.