1.Usage of present simple tense: The answer uses the present simple tense ("is", "serves", "helps", "can improve", "has") to describe general truths and habitual actions, which is appropriate for the context.
2.Parallel structure: The use of parallel structure in "relieve stress and tension," "build social bonds and improve relationships," and "boosting the immune system and making difficult situations more bearable" enhances the clarity and readability of the response.