Rudy maintained a rigid 1000-calorie daily diet over six weeks, shedding significantly more weight during the initial three weeks than the final three due to the fact that:
Show answer Hide answer
Answer: C. his metabolic rate has decreased
Explanation
Prolonged caloric restriction causes the body to slow down its basal metabolic rate to conserve energy. This metabolic adaptation explains why weight loss stalls during the final weeks of a restrictive diet. Because energy expenditure decreases, the daily calorie deficit narrows, causing weight loss to slow down. Basal metabolic rate is the amount of energy expended while resting in a neutrally temperate environment. When calorie intake drops sharply, the body lowers energy output to protect against perceived starvation. This evolutionary survival adaptation makes sustained weight loss increasingly difficult over extended time periods.
Insulin levels typically drop during severe calorie restriction, which mobilizes stored energy rather than stalling weight loss. Lean tissue requires fewer calories to maintain than fat tissue, but this does not explain sudden weight loss stalls. Fat cells decrease in size rather than absolute number during typical weight loss regimens in adults.
- Subject
- Psychology
- Category
- Psychology
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Sally encounters difficulty determining the value of X during her algebra lessons, struggling to fully comprehend the concept of:
Show answer Hide answer
Answer: A. Abstract reasoning
Abstract reasoning requires manipulating theoretical concepts and algebraic symbols without concrete physical props. Sally struggles because algebraic variables like X demand formal operational cognitive abilities. This...
Q2. Sana suffers from a psychological disorder, and her physician prescribed an MAO inhibitor to alleviate her symptoms. Her therapist is most likely treating her for:
Show answer Hide answer
Answer: B. depression
Monoamine oxidase inhibitors are a class of antidepressant medications prescribed to elevate mood. Depression is treated with MAO inhibitors to increase neurotransmitter levels in the brain. Alleviating depressive sympto...
Q3. Saima took a new medication for hay fever that accelerated her heart rate and induced jitteriness. The medication likely enhanced activity within Saima’s:
Show answer Hide answer
Answer: B. sympathetic nervous system
The sympathetic nervous system controls arousal, accelerating heart rate during fight-or-flight responses. Stimulant medications enhance autonomic nervous system activity, causing jitteriness and elevated pulse rates. Th...
Q4. Saima frequently throws tantrums, pouts when denied her way, and acts impulsively with zero patience for delayed gratification. According to Freud, her personality is dominated by the:
Show answer Hide answer
Answer: A. her id
Freud proposed that the id operates on the immediate pleasure principle without delay. Saima displays impulsive tantrums because her personality is currently dominated by unbridled id impulses. The id demands instant gra...
Q5. Rodents react to alarm calls issued by peers in their group. When these calls persist and danger remains unverified, subsequent alerts may be overlooked. This is an instance of:
Show answer Hide answer
Answer: B. Habituation
Habituation is the waning of a behavioral response when a stimulus is presented repeatedly. Persistent alarm calls without actual danger cause rodents to ignore subsequent alerts. Animals learn to filter out harmless rep...
Q6. Order the following perspectives regarding human labor, beginning with the least personal significance and advancing to the greatest.
Show answer Hide answer
Answer: C. Job, career, calling
Psychological work orientations categorize human labor as jobs, careers, and callings in ascending order. Employees view jobs as necessities, careers as stepping stones, and callings as deeply fulfilling purposes. The co...