A sedative is a type of medication that helps to calm the mind and reduce anxiety. It works by slowing down the central nervous system, which can lead to relaxation and drowsiness. Sedatives are often prescribed for conditions like insomnia, anxiety disorders, and certain medical procedures to help patients feel more at ease. Common examples of sedatives include benzodiazepines and barbiturates. While they can be effective for short-term use, there is a risk of dependence and side effects, so they should be used under the guidance of a healthcare professional. Always follow prescribed dosages to ensure safety.