Step 1: Concept
Physical exercise has numerous positive effects on the human body and mind. It can improve physical health, mental well-being, and overall quality of life.
Step 2: Meaning
The question asks us to identify which benefits are associated with regular physical exercise from a given list of options.
Step 3: Analysis
Let's examine each option provided:
A. Increased energy: Regular physical activity increases the body’s ability to use oxygen more efficiently, leading to increased energy levels.
B. Increased depression: Physical exercise can actually help reduce symptoms of depression by releasing endorphins and improving mood.
C. Decreased risk of heart-attack: Exercise strengthens the heart muscle, improves blood flow, and reduces the buildup of plaque in arteries, thereby decreasing the risk of a heart attack.
D. Increased stress level: Physical exercise can help reduce stress levels by promoting relaxation and reducing tension.
Given these points:
Options A (Increased energy) and C (Decreased risk of heart-attack) are correct benefits of physical exercise.
Option B is incorrect as it suggests increased depression, which is the opposite effect.
Option D is also incorrect as it suggests increased stress levels, which again is contrary to the effects of exercise.
Therefore, only options A and C correctly describe the benefits of physical exercise.
Step 4: Conclusion
The correct answer includes the benefits of increased energy (A) and decreased risk of heart-attack (C).
Final Answer: (A)