Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
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