Answer:
cortisol.
Step-by-step explanation:
Whitehall II studies aimed to investigate the social determinants of health, such as the mortality rate and the presence of cardiovascular diseases among British officials.
So it was found by that study that workers with low employment levels had higher cortisol levels, starting in the morning and continuing until the end of the day.
Cortisol is a hormone produced by the adrenal glands that has the function of helping the body to control stress, keep blood pressure under control, increase immunity and reduce inflammation. Therefore, from the presence of the workers' cortisol analysis, it was found that stress was related to poor sleep and work experiences.