What affects our attention so much?

Attention in our lives determine our success in certain context. Attention is affected by myriad of factors. However, one of the major ones which I have been observing (and recently confirmed by a study conducted at the University of Granada) is anxiety.

The article titled Anxiety Affects Attention Processes highlights that "Being of a nervous disposition and being anxious at a given moment affects our attention to what happens. This finding will help improve the treatment of anxiety disorders, so common in our days. In fact, anxiety has become one of the most common conditions among the population, which can explain the negative connotations usually associated to this term."

Dealing with anxiety in an efficient way may have tremendous affect in our life satisfaction as I believe that attention is the key enabler of this process. Wondering what else may have as much impact as anxiety for our attention? Could it be other strong emotions like fear, love and even other shades of anxiety?