Have you noticed that you often wake up just before the alarm clock goes off? Credit it to the fact that we humans have a built-in:
a. aversion to jangling noise, which we try to avoid
b. biological clock
c. sense of responsibility
d. brain mechanism that is always monitoring the external environment, even during sleep
B
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How has research on comorbidity changed the focus of epidemiological research?
a. shifted the focus from the psychotic disorders to milder disorders that affect more people b. higher than expected prevalence of mental retardation led to more emphasis on intellectual ability c. shifted the focus from counting the number of people with a disorder to measuring the functional impairment associated with the problems d. evidence for the biological etiology of more mental disorders has switched the focus to identifying the genes responsible for particular disorders
Which of the following statements accurately reflects the relationship between genes and obesity, as understood by current scientific research?
A. Twin studies suggest that genes play a minor role in the development of obesity. B. To date, research has shown no specific gene mutation associated with binge eating. C. Research has identified 97 genetic regions associated with body mass index and fat distribution. D. Adoption studies reveal that environmental factors influence obesity much more than genetics.