QUESTION 1 1 points Save Answer Library Academic Honesty Student Resources Help

Question

QUESTION 1 1 points Save Answer Library Academic Honesty Student Resources Help Improving physical fitness can reduce the risk of death by Qu 25% 44% 6796 d.38% QUESTION 2 1 points Save Answer Which sleep disorder is characterized by recurrent dreams that are horrifying or threatening in nature? O a. Nightmare disorder Ob. Restless leg syndrome OG. Narcolepsy QUESTION 3 1 points Save Answer Why is exereise important in weight control Oa. Leads to increased ghrelin levels Ob. Does not affect PYY levels Leads to decreased PYY levels Od. Leads to decreased ghrelin levels QUESTION 4 1 points Save Answer What is the second leading cause of unintentional death worldwide? Oa. Fals Ob. Motor-vehicle accidents Oe.Poisoning QUESTION 1 points Save Answer Nicole has trouble with sleepwalking and often has nightmares. Which disorder does she have? a. Non-rapid eye movement (NREMI sleep arousal disorder Oc. Narcolepsy Od.Rapid eye movement REM) sleep behavior disorder

Explanation / Answer

1. (a) The meta-analysis, published in the International Journal of Epidemiology included a total of 22 studies evaluating the impact of exercise on mortality of nearly 1 million people. It clearly shows that if you are currently living a very sedentary lifestyle, the mere act of incorporating some light to moderate activity, five days a week, can significantly reduce your mortality rate. Those who engaged in moderate-intensity activity a full seven days a week further reduced their risk of death, from 19 to 24 percent.

2. (a) Nightmares are vivid and terrifying nocturnal episodes in which the dreamer is abruptly awakened from sleep. Typically, the dreamer wakes from REM sleep and is able to describe a detailed, associative, often bizarre dream plot. Usually, the dreamer has difficulty returning to sleep.

3.(d) Ghrelin is a fast-acting hormone that plays a vital role in increasing appetite, meal initiation and contributing to weight gain. It works with leptin, another body hormone. Both hormones can be controlled naturally, primarily through making smart dietary choices, exercising, sleeping enough and stress management.

4.(c) In 2011, poisonings overtook motor vehicle crashes for the first time as the leading cause of unintentional injury-related death for all ages combined. Poisoning deaths are caused by gases, chemicals, and other substances, but the prescription drug overdose is by far the leading cause.

5. (a) They occur during Slow Wave Sleep (SWS). NREM Sleep Arousal Disorders are usually not caused by underlying conditions and are typically treatable. NREM Sleep Arousal Disorders include confusional arousals, sleep-walking, sleep terrors, and sleep sex.

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