translation.en: Individual issues like quality of relationship or work conditions or societal issues like racism or sexism or the daily grind of poverty are all strongly related to daily mood.
translation.zh: 人际关系和工作环境的质量等个人问题， 或者种族主义、性别歧视、 贫困折磨等社会问题， 都跟每天的情绪有密切关联。