According to a story published in The Times, Early Birds are generally happier than Night Owls. New studies show that it is not just because early birds get more daylight, or have a better night's sleep. According to a study carried out by scientists at the University of Warsaw, a large part of their mood could be down to the fact that early birds tend to feel better supported by friends and family, whereas night owls (fairly or unfairly) may be perceived as lazy.
This is particularly relevant to members of the Learn English Network, and we should really ask the attendees of the Early Bird and Night Owl sessions if they agree.