Elsa + left-handed
Some studies have found that left-handed people tend to be more vulnerable to negative emotions such as depression and anger. They are more prone to fear. Their brain hemispheres have more symmetry than right-handed people, which explains why their skills are most randomized and less specified to either side of the brain.
So, how is this relevant to Elsa, you may ask? These facts more or less support the intense fear that Elsa experienced when Anna was hurt and when the prophecy was revealed to her—which led her to a life of isolation and loneliness. Elsa’s love and instinctive nature to protect Anna had made this even more difficult for her and this, in turn, had worsened her fear. Note that fear isn’t good for Elsa for this will only make her power uncontrollable and dangerous. It was also observed that Elsa’s susceptibility to experience fear had made her quick to anger when she was threatened.
This, and the other little details that were put into the film, have made me love the movie a whole lot more.