Fig. 4. Mean saliva-free cortisol sampled on waking up, 30 minutes later, and then at 2-hour intervals in men from higher (•) and lower (
) grades of employment. Error bars are SEM.
Fig. 4. Mean saliva-free cortisol sampled on waking up, 30 minutes later, and then at 2-hour intervals in men from higher (•) and lower () grades of employment. Error bars are SEM.