What women want in a partner has long fascinated psychologists. Physical strength is often assumed to figure on the list. Muscles, the thinking goes, must signal health, vigour and the capacity to defend.

Yet a study suggests that it is bravery, not brawn, that truly counts.

In a series of experiments involving more than 4,500 Americans, researchers set out to untangle the attractiveness of two traits that might seem to be intertwined: strength and the willingness to protect.

Neville Longbottom in the Harry Potter series, played by Matthew Lewis, and Elijah Wood as Frodo in the Lord of the Rings movies, showed more courage than physical might

REUTERS/NEW LINE CINEMA