Why do some adolescents engage in risky behavior during puberty? How can you decrease the likelihood that adolescents will engage in health-compromising behavior?
The wide chronological age range during which pubertal growth and development begins and proceeds can become a major source of personal dissatisfaction for some adolescents. Males who enter puberty late often feel physically inferior to their peers who mature earlier and may resort to the use of anabolic steroids and other supplements in an effort to increase linear growth and muscle development. Females who mature early have been found to have more eating problems and poorer body image than their later developing peers. They are also more likely to initiate risky behaviors such as smoking, drinking alcohol, and engaging in sexual intercourse at an earlier age. Education of young adolescents on normal variations in tempo and timing of growth and development can help to facilitate a positive self-image, which may reduce the likelihood of engaging in health-compromising behaviors.
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Which of the following instruments is designed to provide an accurate measurement of work?
A. Heart rate monitor B. Ergometer C. Watts D. Calorimeter
Which of the following describes fat utilization during physical activity?
a. Fat that is stored closest to the exercising muscle is oxidized first. b. Fat represents the major fuel source during sustained, moderate activity. c. Fat oxidization makes more of a contribution as the intensity of the exercise increases. d. Fat is burned in higher quantities during short, high-intensity exercises than prolonged, low-intensity exercises. e. Fat makes more and more of a contribution to the fuel mixture as exercise intensity increases.
Which nutrition assessment technique is a measure of protein status??
A) ?serum albumin B) ?body mass index C) ?mean corpuscular volume D) ?plasma creatinine
Cameron takes megadoses of a single mineral supplement. Lately, he's noticed that his fingernails break easily, his hair is falling out, and he's more tired than usual. His friends have told him that he smells like garlic. Based on this information, Cameron has consumed too much ________.
A. selenium B. magnesium C. iron D. calcium