Susto is a folk illness said to be caused from suffering a fright experience. Examples of what might cause susto include:
- being thrown from a horse
- an auto accident
- tripping over an unseen object
- societal pressure
Symptoms of susto seem to correlate with symptoms of anxiety or depression: difficulty sleeping, listlessness, etc. The belief is that susto will not resolve itself but must be treated. The traditional cure is through the rituals of the curandero.