For example, one study on volunteerism found that feeling overwhelmed by others' demands had an even stronger negative effect on mental health than helping had a positive one (although positive effects were still significant).
fɔːɹ ɛɡzˈæmpəl, wˈʌn stˈʌdi ˌɔn vˌɑːləntˈɪɹɪzəm fˈaʊnd ðæt fˈiːlɪŋ ˌoʊvɚwˈɛlmd baɪ ˈʌðɚz dᵻmˈændz hæd ɐn ˈiːvən stɹˈɔŋɡɚ nˈɛɡətˌɪv ɪfˈɛkt ˌɔn mˈɛntəl hˈɛlθ ðɐn hˈɛlpɪŋ hæd ɐ pˈɑːzᵻtˌɪv wˈʌn ɔːlðˈoʊ pˈɑːzᵻtˌɪv ɪfˈɛkts wɜː stˈɪl sɪɡnˈɪfɪkənt.