Which is a negative effect of using human growth hormone as a performance-enhancing drug?
Look at the graph about the barriers to working out.

Sara has recently joined a sports club and her parents are noticing some changes in her behavior. Which of these indicates that Sara might be using performance-enhancing drugs?
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According to federal guidelines, how much time should an adult perform moderate exercise each week, in addition to strength training?
Which is an example of a barrier to exercise?
What is one thing a person should do to stay safe when exercising?
Which is a strength-training activity?
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The graph illustrates the top five activities in Physical Education at schools.

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