Final answer:
Only certain types of physical activity help to develop physical fitness. Different activities target various components of fitness, including cardiovascular endurance, muscular strength, and flexibility. Proper rest and nutrition are also important.
Step-by-step explanation:
Only certain types of physical activity help to develop physical fitness. It is important to engage in activities that target different components of fitness, such as cardiovascular endurance, muscular strength, and flexibility. For example, running or swimming can improve cardiovascular endurance, while weightlifting or resistance training can enhance muscular strength. Stretching exercises like yoga or Pilates can promote flexibility. Additionally, it's crucial to maintain a balanced diet and get enough rest for optimal physical fitness.
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