Stress-induced increases in progesterone and cortisol in naturally cycling women.

42m-post-stress) repeated measures ANOVA on salivary cortisol levels revealed a marginally significant main effect of stress, F ( 1,26 ) = 3.326, p = .080, η p 2 = .113, a significant main effect of time, F ( 2,52 ) = 5.757, p < .01, η p 2 = .181, and a significant stress × time interaction showing that CPT exposure increased cortisol levels, whereas warm water exposure did not, F ( 2,52 ) = 10.040, p < .001, η p 2 = .279; see Fig. 2 .

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