JEALOUS lovers will wish they could adjust the height of their heels, for the power of the green-eyed monster depends on how tall you are.

So say researchers from the Universities of Groningen and Valencia who asked 549 men and women in the Netherlands and Spain to rate how jealous they felt and to identify the qualities in a romantic competitor that were most likely to bug them.

Men, who generally felt most nervous about attractive, rich and strong rivals, were increasingly relaxed, the taller they were themselves. Women, on the other hand, were most jealous of others’ beauty and …