The present study examines whether the Positive Psychology course, which is given for 14 weeks and 3 hours per week to students at a university in Istanbul. 417 students participated. The study assessed pre- to post-test modifications in personal and mental wellbeing, happiness, satisfaction of life, emotional and social intelligence, emotional expressions and attachment styles factors. The findings showed that significant differences between male and female gender in emotional and social intelligence. Interestingly, positive psychology course effects the participants negatively in happiness, well-being, and social intelligence, unlike in emotional expression. It was necessary to discuss these results in a new perspective. The point reached at the end of the Positive Psychology course was not a happier life. Also, if the increase in awareness causes someone to find a deeper meaning, then happiness and well-being will be decreased at the beginning.