Volunteerism and helping behavior have not only been shown to improve mental health but physical health and longevity as well, attributable to the activity and social integration it encourages.
vˌɑːləntˈɪɹɪzəm ænd hˈɛlpɪŋ bᵻhˈeɪvjɚ hɐvnˌɑːt ˈoʊnli bˌɪn ʃˈoʊn tʊ ɪmpɹˈuːv mˈɛntəl hˈɛlθ bˌʌt fˈɪzɪkəl hˈɛlθ ænd lɔndʒˈɛvᵻɾi æz wˈɛl, ɐtɹˈɪbjuːɾəbəl tə ðɪ æktˈɪvᵻɾi ænd sˈoʊʃəl ˌɪntᵻɡɹˈeɪʃən ɪɾ ɛŋkˈɜːɹɪdʒᵻz.