Level 1: Why are pregnant women easily afraid of the cold? Pregnant women experience many changes in their bodies, one of which is a decrease in their ability to regulate body temperature. This is because during pregnancy, the level of estrogen in a woman\’s body will increase, which will lead to dilation of blood vessels, increased blood flow, accelerated metabolism, etc., thus increasing the body\’s ability to dissipate heat. Therefore, even when the temperature is not