Women were found to react more to negative stimuli when in midluteal stage over the women in the follicular stage, perhaps indicating more reactivity to social stress during that menstrual cycle phase.
Det blev også fundet at kvinder reagerede mere på negative stimuli i den midtluteale fase end kvinder i den follikulære fase, hvilket kunne indikere mere reaktivitet på social stress under den fase af menstruationscyklussen.