Can progesterone be of benefit if it isn’t needed to get pregnant? Well, it has proven over time to be the most protective hormone the body produces.
In experiments, progesterone were found to be the basic hormone of adaptation and of resistance to stress. The adrenal glands use progesterone to produce their anti-stress hormones, and when there is enough progesterone, they don’t have to produce the potentially harmful cortisol. In fact, estrogen causes the body to store fat; progesterone causes the body to burn fat.