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Many people who suffer from mid-levels of chronic pain have, on averag

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Many people who suffer from mid-levels of chronic pain have, on averag  [#permalink]

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New post 10 Jan 2019, 14:44
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A
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61% (02:03) correct 39% (02:20) wrong based on 148 sessions

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Many people who suffer from mid-levels of chronic pain have, on average, slightly lower blood pressure when paired with others of the same age and body characteristics. Thus, the many people without chronic pain have slightly higher blood pressure than do those with chronic pain. While high blood pressure has many documented harmful effects, this fact suggests that in human evolution, the tendency toward high blood pressure developed as a defense against chronic pain.

Which of the following, if true, most seriously weakens the force of the evidence cited?

A. It is not well understood how individuals with mid-levels of chronic pain would have fared in conditions of early humanity.
B. Diet has a significant effect on blood pressure, and many typical “comfort foods” have the effect of elevating blood pressure.
C. Many of the emotions associated with the onset of chronic pain, such as anxiety, have the effect of raising blood pressure over time.
D. People with mid-levels of chronic pain typically take anti-inflammatory drugs, which can have the effect of lowering blood pressure.
E. Chronic pain was not systematically studied until the 20th century.
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New post 10 Jan 2019, 19:37
Any explanations here? As to why option B is wrong? Is it because it is making a generalized statement about "comfort food" and not including people suffering from chronic pain?
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Re: Many people who suffer from mid-levels of chronic pain have, on averag  [#permalink]

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New post 10 Jan 2019, 20:15
Ans D ( In my opinion)
Argument wants us to weaken the evidence ,which states that people suffering from chronic disease will have lower blood pressure (due to defense mechanism of the body to chronic disease) and it uses this fact to conclude the argument.
Only option D states another reason about why people suffering from chronic disease will have lower blood pressure

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New post 11 Jan 2019, 02:46
Hi,
Please explain why option d is correct and b/c are wrong?
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New post 11 Jan 2019, 05:00
Argument is telling more chronic pain = less BP but C is going the other way.

B has nothing to do with Chronic pain.
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Re: Many people who suffer from mid-levels of chronic pain have, on averag  [#permalink]

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New post 11 Jan 2019, 06:20
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pineapple123456 wrote:
Many people who suffer from mid-levels of chronic pain have, on average, slightly lower blood pressure when paired with others of the same age and body characteristics. Thus, the many people without chronic pain have slightly higher blood pressure than do those with chronic pain. While high blood pressure has many documented harmful effects, this fact suggests that in human evolution, the tendency toward high blood pressure developed as a defense against chronic pain.

Which of the following, if true, most seriously weakens the force of the evidence cited?

A. It is not well understood how individuals with mid-levels of chronic pain would have fared in conditions of early humanity.
B. Diet has a significant effect on blood pressure, and many typical “comfort foods” have the effect of elevating blood pressure.
C. Many of the emotions associated with the onset of chronic pain, such as anxiety, have the effect of raising blood pressure over time.
D. People with mid-levels of chronic pain typically take anti-inflammatory drugs, which can have the effect of lowering blood pressure.
E. Chronic pain was not systematically studied until the 20th century.


People with chronic pain have lower BP than others.
Hence, High BP developed as a defence against chronic pain.

Just because chronic pain and lower BP occur together, the author is assuming that high BP developed to fight chronic pain.

We need to weaken the argument.

A. It is not well understood how individuals with mid-levels of chronic pain would have fared in conditions of early humanity.
Too generic. It is not well understood how these people fared in early humanity but we can still hypothesise on what might have happened. It doesn't weaken our hypothesis.

B. Diet has a significant effect on blood pressure, and many typical “comfort foods” have the effect of elevating blood pressure.
This discusses diet and BP. We don't know how that links to chronic pain. Do people with chronic pain eat less comfort food? We don't know.

C. Many of the emotions associated with the onset of chronic pain, such as anxiety, have the effect of raising blood pressure over time.
We are talking about mid-levels of chronic pain, not the onset of chronic pain. What happens at the onset is not relevant.

D. People with mid-levels of chronic pain typically take anti-inflammatory drugs, which can have the effect of lowering blood pressure.
This helps. The drugs used for chronic pain lower BP. That could be the reason the two occur together. It makes our conclusion suspect.

E. Chronic pain was not systematically studied until the 20th century.
Irrelevant. When it was studied is immaterial. We are hypothesising about what must have happened.

Answer (D)
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Re: Many people who suffer from mid-levels of chronic pain have, on averag   [#permalink] 11 Jan 2019, 06:20
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