Cortisol
Cortisol, the stress hormone, once unbalanced, can cause depression. Too high of a level of cortisol, and the individual is dealing with agitation, belly fat and insomnia. Too low, and one is relatively unable to deal with stressful situations, punctuated by fatigue and mood swings/instability.Any cause for a sudden drop in estrogen in a woman can spark the onset of depression. Those with a history of mood disorders have a larger risk of experiencing depression during menopause as well.
