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下列灭火器的报废年限最长的是()
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Fitness trainer and writer Frank Sutton sees a lot of unfit people at the fitness centre where he works –and many of them are people in their teens or even younger.
You are talking with two of your friends about a good Clint Eastwood film you saw on TV last night, but after you climb the stairs to your classroom, you’re out of breath and have to stop talking.
You don’t smoke, you don’t drink alcohol, you’re not really overweight, and you always thought you were fit and healthy, but obviously you’re not.
Research in the UK shows that you’re not getting enough “extreme exercise,” especially if you’re a girl. The average 50-year-old British man is probably fitter than the average 15-year-old British girl.
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