Question

dear mr. richey
student volunteers benefit the most from serving the community, because it makes them happy and reduces their stress.
if more student volunteers there will be less depression. in paragraph 10 the author states, “a study conducted by the london school of economics and published in social science and medicine found that the more people volunteered, the happier they were”. this shows that if more student volunteers to help other it will make them happier.
volunteering helps lower stress and improves health. in paragraph 9 it states, “rodlescia sneed, who conducted a study in 2013 on volunteering, notes that volunteering appears to lower stress”. the study showed that people who did about 200 hours of volunteer work per year had lower stress and better health outcomes.

Explanation:

Since the problem is not clearly stated (e.g., it could be about analyzing the text, finding a subfield related to the topic, etc.), but based on the content about student volunteers' mental health and well - being, if we assume the task is to find the relevant subfield:

The text discusses the impact of volunteering on students' mental health (happiness, stress, depression) and cites studies. Psychology (a subfield of Social Science) deals with human behavior, mental processes, and well - being, which is relevant here as it explores how volunteering affects students' psychological states.

Answer:

Social Science - Psychology