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Q.Explain the importance of physical fitness for the working of the body's systems and the prevention of disease.

Puducherry CbseNCERTSubjective· 3mImportance★★★★★est
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Physical fitness makes the body's systems (cardiovascular, respiratory, muscular, skeletal, metabolic) work more efficiently and lowers the risk of lifestyle diseases.

Importance for the working of the body's systems:

  • Cardiovascular system: regular activity strengthens the heart, improves circulation and lowers resting heart rate and blood pressure.
  • Respiratory system: the lungs work more efficiently, improving oxygen supply to the body.
  • Muscular and skeletal systems: fitness builds stronger, more enduring muscles and stronger bones and joints, improving posture and reducing injury.
  • Metabolism and body weight: it helps burn energy, maintain a healthy body composition and regulate blood sugar and cholesterol.

Prevention of disease:

  • A fit body better resists lifestyle (non-communicable) diseases such as obesity, coronary heart disease, high blood pressure, type-2 diabetes and some postural deformities. …

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