We normally associate the arrival of warmer weather with positive experiences, such as vacations, walks on the beach and evenings eating on outdoor patios with friends. However, exposure to heat can also generate negative feelings that lead to socially inappropriate behaviour, such as excessive violence in sports.
When it is too hot, people become irritable and are more likely to believe that others are being hostile toward them. In response to these negative feelings, some people engage in violent and inappropriate behaviours.
