An international study has revealed very surprising results: height is one of the factors influencing how jealous the person is in a relationship. It has been found, that the shorter one is, the more jealous lover they are. The study was conducted by researchers from the Universities of Groningen and Valencia and involved 549 men and women from the Netherlands and Spain. They were asked to rate how jealous they felt and to list the qualities of a potential rival, which would make them feel jealous. Full story