Step 1: Understanding the Concept:
Psychology in sports highlights that exercise is not just for physical development but also for psychological well-being. During high-pressure situations like major exams, the mental benefits of exercise become a priority.
Step 2: Detailed Explanation:
1. Exercise triggers the release of endorphins, often called "feel-good" hormones, which act as natural painkillers and mood elevators.
2. Physical activity reduces the levels of the body's stress hormones, such as adrenaline and cortisol.
3. For a student facing anxiety, the immediate goal of exercise is to clear the mind, improve focus, and provide a break from academic pressure, which falls under mental relaxation.
Step 3: Final Answer:
The most suitable reason for Shweta is Mental Relaxation.