1. Introduction
Anxiety is one of the most prevalent health problems around the
world.1 It encompasses a feeling of intense and indeterminate fear
or apprehension with physical signs such as heart palpitations,
sweating and tension. Anxiety is a normal reaction in humans
because let us to avoid potential threats. However, it can be
considered a problem when it becomes associated with cues that
are not a real danger and escaping of these feared cues becomes
chronic and habitual.2