Final answer:
Eustress is a positive, motivational form of stress enhancing performance and well-being, while distress is negative, causing exhaustion and a decline in performance and health.
Step-by-step explanation:
The difference between eustress and distress is primarily seen in their effects on an individual's performance and well-being. Eustress is a form of stress that is positive and motivational, often associated with positive feelings, optimal health, and improved performance. This type of stress can help an athlete feel energized before a game or a student to be motivated before a major exam, potentially enhancing their ability to recall educational material. On the contrary, distress is a negative form of stress that occurs when stress levels exceed an individual's optimal level, leading to exhaustion, burnout, and a decline in performance. If stress continues to be overwhelming, it can also lead to detrimental health effects.