Final answer:
Psychologist Mark Seery found that moderate levels of cumulative adversity were associated with poor health outcomes. Both positive and negative life events can cause stress, with high levels leading to detrimental health outcomes. Daily hassles and types of stressors also significantly affect well-being.
Step-by-step explanation:
Psychologist Mark Seery conducted a longitudinal study of the relationship between well-being and exposure to negative life events. He found that moderate levels of cumulative adversity were associated with poor health outcomes.
Psychological research has highlighted the complex effects of stress and adversity on health. In the context of the Social Readjustment Rating Scale (SRRS) developed by Holmes and Rahe, life stressors requiring significant changes in a person's normal routines can cause stress. Both life events that are conventionally viewed as positive and those that are negative can contribute to this stress. A certain amount of adversity can act as eustress, serving to strengthen resilience. However, when exposure to adverse events reaches high levels, it can lead to detrimental health outcomes, as excessive stress places an immense burden on the body and mind.
Moreover, consistent with research demonstrating the importance of daily hassles in predicting health outcomes, it can be inferred that not only the magnitude but also the frequency and type of stressors encountered play a significant role in an individual's well-being.