Happier Hour —— A book recommendation

         2 hour is enough, less will be cruel/stressful , more will feel emptiness

        Spend time doing sports

        Feel the awesomeness of life or nature        

        .....

        This book is about the feelings of time. When things have relations with the psychology, they can become interesting even unexplainable. 

        Although I haven't found the English version, I believe I will read it sooner or later.