Final answer:
Excessive stress beyond the optimum level can lead to a decline in performance and negative physical effects such as burnout, fatigue, and exhaustion.
Step-by-step explanation:
When stress levels go past the optimum point, it becomes excessive and debilitating, leading to a decline in performance and negative physical effects. Excessive stress can result in burnout, fatigue, and exhaustion, which can negatively impact a person's well-being and overall health. An example of distress is severe test anxiety, where the combination of negative emotions and physical symptoms can hinder concentration and lead to poor test scores.
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