Benzodiazepines, or benzos, are tranquilizers that are normally only available with a doctor’s prescription. Benzos have a relaxing effect and slow down emotions, which is why they have long been used to treat tension and persistent anxiety. Benzo also alleviates anxiety in cases of mental illness. As a result, it is a significant substance in psychiatric treatment. However, much more research is needed because not all hazards associated with benzos are recognized. What is known about benzos is that long-term usage can alter the sleep cycle.