Are you looking forward to the lighter evenings of summer? Perhaps you're already feeling different as the seasons change and the green shoots of spring arrive? This week on All in the Mind we're taking a look at how the seasons affect our moods, thoughts and behaviours. Claudia Hammond speaks to Michael Varnum from Arizona State University about what the research says. Cognitive neuroscientist Sophie Scott, joins Claudia in the studio to ask what it means for the science of psychology if the seasons have such a profound effect.And we hear from a project in Northern Ireland that teaches people to have hope. Marie Dunne was inspired to set up the project, called Resilio, after witnessing the success of a programme designed to teach hope in schools. Based on that programme Resilio developed their own hope courses for adults. We hear from people who have benefitted from those courses, and from people who run them, about how to find hope. Finally, Sophie Scott discusses a new study which found that male psychology scholars were less likely to think of female scholars when asked to name eminent researchers in that field. Could it explain the gender cap in citation rates?Presenter: Claudia Hammond Producers: Lorna Stewart & Lucy Taylor Studio Manager: Tim Heffer Production Coordinator: Siobhan Maguire Editor: Holly Squire