Question

if a girl walking and she got tired why​

Answer 1

Answer:

A variety of causes can contribute to your lack of aerobic endurance and all stem from the condition and efficiency of your heart. Being overweight places strain on the heart as it labors to pump blood through your body, reducing your endurance. Smokers usually have reduced endurance because they have reduced lung capacity and replace the oxygen in their blood with carbon monoxide, which is then pumped through the body. Even people who look physically fit can have low endurance if they don't exercise regularly, because their hearts aren't strengthened through workout and must labor to pump blood during the occasional aerobic workout, such as a brisk, long walk.

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Answer 2

Answer:

because she is walking from many time