Benefits of physical exercises are : I. Increased energy II. Increased depression III. Decreased risk of heart attack IV. Increased stress level Find the correct combination :

Question

Accepted Answer

The correct option is (1):
Physical exercises offer profound benefits across both physiological and mental domains, making the combination of 'Increased energy' (I) and 'Decreased risk of heart attack' (III) the accurate choice. The benefit of increased energy (I) stems from the body's adaptation to regular training. Exercise improves cardiovascular and respiratory efficiency, meaning the heart and lungs can more effectively deliver oxygen and nutrients to muscle tissues. It also enhances the function of cellular mitochondria, which are responsible for energy production, resulting in greater overall stamina and a reduction in chronic fatigue. Decreased risk of heart attack (III) is a cornerstone of exercise's long-term health benefits, as physical activity strengthens the heart, helps maintain healthy blood pressure and cholesterol levels, and keeps arteries clear and flexible, directly combating the primary causes of cardiovascular disease.

The incorrect options are (I, IV), (I, II), and (II, IV):
These options are incorrect because they include the misleading statements 'Increased depression' (II) or 'Increased stress level' (IV). In reality, physical exercise is widely recognized as a highly effective non-pharmacological treatment for managing and reducing symptoms of both depression and chronic stress. Regarding depression (II), vigorous or moderate exercise triggers the release of endorphins and endocannabinoids, which are natural mood elevators, and helps regulate key neurotransmitters like serotonin and dopamine, thereby improving mental well-being and mitigating depressive feelings. Similarly, while a rigorous workout causes temporary physiological stress, it ultimately serves to decrease the overall chronic stress level (IV) by reducing the body's long-term output of stress hormones like cortisol and providing a productive, physical outlet for mental tension and anxiety.