how would you know that we're more "stressed" compared to those who lived through the past years decades generations or era? we have a more advanced technology which sure has its cons but still does make our lives 'easier'.
idk... maybe coz were human and we never really get contented on what we have and instead wants and needs more and more? also maybe you thought were more stressed is because we see everything now bc of fhe internet. i can just complain about one thing that happened for a sec and the world would think its the worst thing that could possibly happen to someone. multiply this to millions of people ranting virtually