Optimism, pessimism, and mental health https://t.co/0YAPpxp96B http://pic.twitter.com/b1ZWd4EpML
— Jerry Rosser (@psychologyofjoy) November 1, 2017
Optimism, pessimism, and mental health https://t.co/0YAPpxp96B http://pic.twitter.com/b1ZWd4EpML
— Jerry Rosser (@psychologyofjoy) November 1, 2017