Exercise improves body composition by increasing muscle mass and reducing body fat. Engaging in resistance training elevates metabolic rate, leading to greater calorie expenditure even at rest. As muscle is more metabolically active than fat, a higher muscle-to-fat ratio contributes to better overall body composition and increased energy levels. Additionally, regular physical activity supports healthy weight maintenance and can lead to improvements in overall health markers like blood pressure and lipid levels. Sustainable exercise habits are crucial for long-term changes.