This study tracked 30,000 adults in the United States for eight years, and they started by asking people, \"How much stress have you experienced in the last year?\"
Penelitian ini mengamati 30.000 orang dewasa di AS selama 8 tahun, dan mereka mulai dengan mengajukan pertanyaan, \"Seberapa sering Anda mengalami stres selama 1 tahun terakhir?\"