Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: Part of debunking #panic is the idea that either a physical symptom, negative thought, or a behavior begins the vicious cycle. #CBTWORKS
This tweet contains emotions: 
fear