This study has several limitations. First, the definition of stress and how it is measured—in terms of both biological markers and subjective experience—is problematic and has been debated in many studies. Because the word has great currency in popular discourse, its meaning is not always clear when used colloquially. As many focus group participants noted, ‘‘my’’ stress may be quite different from ‘‘your’’ stress. Thus, although we explored in detail how participants defined and explained their experience of stress, it is possible that the term was at times ambiguous.