Figure 2From: A clinical study of the efficacy of a single session of individual exercise for depressive patients, assessed by the change in saliva free cortisol levelBoxplot of time course change in the saliva free cortisol levels of 15 participants during the control session. Each box includes 50% of the cases (between percentils 25 and 75). The black line inside represents the median and the whiskers show extreme cases of individual variables.Back to article page