“…A new emerged category includes the so called mood anomalies determined by the weather parameters: number of hours of sunshine, temperature, humidity, geomagnetic storms (Cao & Wei, 2005;Dowling & Lucey, 2008a, 2008bSaunders, 1993) and by biorhythm variables: full moon effect (Dichev & Janes, 2003), daylight saving time (DST) effect (Kamstra, Kramer, & Levi, 2000, seasonal affective disorder (SAD) effect (Dowling & Lucey, 2005;Kamstra, Kramer, & Levi, 2003).…”