| Course | HLTH 8745 Health Psychology |
|---|---|
| Week | Week 6 |
| Paper type | Peer reply |
| Length | About 380 words, 3 pages |
| Format | Discussion reply, APA 7 citations |
| School | Walden University |
| Program | PhD in Public Health |
| Updated | October 2026 |
Free sample paper for HLTH 8745 Week 6
Week 6 Reply: Depression and Recurrent Heart Attack
Filling In the Steps Between a Depressive Symptom and an Artery: A Peer Reply Adding a Behavioral Route and an Inflammatory Route to a Classmate's Stress Hormone Account, and Asking Whether the Arrow Runs Both Ways
Reply to Marcus
Marcus, your post argues that depressive symptoms raise the risk of a second heart attack through stress hormones. The association itself is well supported: an American Heart Association scientific statement reviewed the evidence and recommended that depression be recognized as a risk factor for poor outcomes after acute coronary syndrome (Lichtman et al., 2014). My question is what happens between the symptom and the artery, because "through stress hormones" covers several steps that the evidence treats differently.
The first missing step is behavioral. People who are depressed after a heart attack may find it harder to take medications, exercise, quit smoking or attend cardiac rehabilitation. Ziegelstein et al. (2000) found that patients with depression after a myocardial infarction were less likely to follow recommendations to reduce cardiac risk during recovery. In the Heart and Soul Study, Whooley et al. (2008) followed 1,017 outpatients with coronary heart disease and found that depressive symptoms were associated with a higher rate of cardiovascular events. After adjustment for disease severity and comorbid conditions, the association persisted, but it was no longer significant after further adjustment for health behaviors, especially physical inactivity. That pattern suggests behavior may carry much of the effect.
The second missing step is inflammatory. Depression is associated with higher levels of inflammatory markers. A meta-analysis by Howren et al. (2009) found positive associations between depression and C-reactive protein, interleukin-1 and interleukin-6, and inflammation plays a role in the instability of coronary plaques. Stress hormones may contribute to inflammation, but the inflammatory route can also run through other processes, including obesity and poor sleep, so it deserves its own step.
Finally, could the arrow run the other way? A heart attack, its treatment and its limits on daily life can themselves bring on depression, and people with more severe heart disease may be both more depressed and more likely to have another event. If severity drives both, depression would mark risk without causing it. Would your sources let you separate those possibilities, for example by adjusting for left ventricular function or measuring depression before the first event?
References
Howren, M. B., Lamkin, D. M., & Suls, J. (2009). Associations of depression with C-reactive protein, IL-1, and IL-6: A meta-analysis. Psychosomatic Medicine, 71(2), 171-186. https://doi.org/10.1097/PSY.0b013e3181907c1b
Lichtman, J. H., Froelicher, E. S., Blumenthal, J. A., Carney, R. M., Doering, L. V., Frasure-Smith, N., Freedland, K. E., Jaffe, A. S., Leifheit-Limson, E. C., Sheps, D. S., Vaccarino, V., & Wulsin, L. (2014). Depression as a risk factor for poor prognosis among patients with acute coronary syndrome: Systematic review and recommendations: A scientific statement from the American Heart Association. Circulation, 129(12), 1350-1369. https://doi.org/10.1161/CIR.0000000000000019
Whooley, M. A., de Jonge, P., Vittinghoff, E., Otte, C., Moos, R., Carney, R. M., Ali, S., Dowray, S., Na, B., Feldman, M. D., Schiller, N. B., & Browner, W. S. (2008). Depressive symptoms, health behaviors, and risk of cardiovascular events in patients with coronary heart disease. JAMA, 300(20), 2379-2388. https://doi.org/10.1001/jama.2008.711
Ziegelstein, R. C., Fauerbach, J. A., Stevens, S. S., Romanelli, J., Richter, D. P., & Bush, D. E. (2000). Patients with depression are less likely to follow recommendations to reduce cardiac risk during recovery from a myocardial infarction. Archives of Internal Medicine, 160(12), 1818-1823. https://doi.org/10.1001/archinte.160.12.1818
HLTH 8745 Week 6 instructions, in plain terms
Students reply to a classmate's proposed mechanism linking a psychological factor to a physical outcome. Faculty expect the reply to acknowledge what is supported and then identify missing steps in the classmate's route, with evidence for each. The strongest replies add specific alternative or complementary pathways, such as behavioral and inflammatory routes, and report how studies tested them, for example by adjusting for mediators. Faculty also value a question about the direction of the relationship or about confounding by a third factor. Keep the tone warm and aim every criticism at a step in the pathway, never at the person who proposed it. One or two well-chosen sources are usually enough, and the reply should end with a question that the classmate can investigate.
How this HLTH 8745 Week 6 example is built
The reply opens by citing Lichtman and colleagues' scientific statement to grant the association, then asks what lies between symptom and artery. The behavioral paragraph cites Ziegelstein and colleagues on following risk-reduction advice and Whooley and colleagues' Heart and Soul Study results, explaining how adjustment for behaviors removed the significant association. The inflammatory paragraph cites Howren and colleagues' meta-analysis and notes that inflammation can arise through routes other than stress hormones. A final paragraph raises reverse causation and confounding by severity and asks whether the classmate's sources adjusted for heart function or measured depression before the first event.
Where the marks sit in the HLTH 8745 Week 6 rubric
Faculty grade the reply on how much it adds to the classmate's account and how accurately it uses evidence. Agreeing or repeating the association earns little. Credit rises when the reply names specific missing steps and supports each with a study, especially one that tested mediation. Accurate reporting of findings, including what changed after adjustment, is checked. Faculty value a question about direction or confounding because it shows causal reasoning. Collegial tone and a question the classmate can act on earn the engagement share. Replies that introduce too many sources without explaining their relevance lose focus. Precise language about what the evidence shows, such as association rather than cause, completes a strong reply.
HLTH 8745 Week 6 help: mistakes that cost marks
Replies to mechanism claims often agree or say that correlation is not causation. Neither helps the classmate. To write a stronger reply, grant the association if it is supported, then ask what happens at each step between the cause and the outcome. Add one or two specific routes, such as behavior or inflammation, and cite a study that tested each. Explain what changed when researchers adjusted for the proposed step. Ask whether the relationship might run the other way or be driven by a third factor. End with a question the classmate can look into. A peer reply filling in the steps your classmate left out can be written for your thread.
Get a HLTH 8745 Week 6 example written to your instructions
Drop in the classmate's post with the response guidelines and rubric. The reply you receive names the step that post's pathway skipped, sets an ordinary behavioral route beside the physiological one, tests which way the arrow runs, and ends on a question the cited sources can settle. That classmate does not exist. Ready in 24 to 48 hours, no fee for the first.
More HLTH 8745 papers and PhD in Public Health samples
- HLTH 8745 Week 1: Ulcer Explanation Post
- HLTH 8745 Week 2: Wound Healing Mechanism Brief
- HLTH 8745 Week 3: Allostatic Load Analysis
- HLTH 8745 Week 4: Planned Behavior Model Application
- HLTH 8745 Week 5: Cortisol Measurement Critique
- HLTH 8745 Week 7: Medication Adherence Analysis
- HLTH 8745 Week 8: Illness Representation Case
- HLTH 8745 Week 9: Fear-Avoidance Pain Analysis
- HLTH 8745 Week 10: Behavioral Trial Critique
- HLTH 8745 Week 11: Stress and Infection Mechanism Paper
- HLTH 8701 Week 6: Mechanism Peer Reply
- HLTH 8574 Week 6: Cancer Disparities Memo
- HLTH 8573 Week 6: Child Nutrition Policy Analysis
- HLTH 8560E Week 6: Analytic Sample Derivation
HLTH 8745 Week 6 questions, answered
How critical can a peer reply be without seeming rude?
Quite critical, if the criticism is about the pathway rather than the person. The sample agrees with the classmate's association before raising the missing steps, and phrases each step as a question the classmate's own sources could answer. That framing lets you press hard on the evidence while keeping the exchange collegial, which many discussion rubrics score separately.
Is it enough to say correlation does not prove causation?
Rarely. Your classmate probably knows the phrase, and it does not tell them what to check. The sample names specific alternatives, a behavioral route and a reversed direction, each of which could be examined in the cited studies. A reply that points to a concrete gap gives the original poster something to do, which is what graders look for in a response.
Should the reply cite new sources?
One or two, where they support a specific step you are adding, such as work on inflammation in cardiac patients. The sample keeps its own citations minimal and directs most of its questions to the classmate's references. Replies that arrive with a long new bibliography tend to become a second original post rather than a response to the first one.
Where can I find a free HLTH 8745 Week 6 sample paper?
The complete Week 6 peer reply is shown here, adding behavioral and inflammatory routes to a classmate's stress hormone account of depression and recurrent heart attack, with four references.
What did the Heart and Soul Study find about health behaviors?
Depressive symptoms were associated with a higher rate of cardiovascular events, but after adjustment for health behaviors, especially physical inactivity, the association was no longer significant, suggesting behavior may carry much of the effect.