Hops(Humulus lupulus): Hops has been used as a bittering and preservative agent in brewing for centuries. In Germany, hops is licensed for use in states of unrest and anxiety as well as sleep disorders, due to its calming and sleep-inducing properties. European medicinal plant researchers have approved the use of hops for such conditions as nervous tension, excitability, restlessness, and sleep disturbances, and as an aid to stimulate appetite. Unlike other types of sedatives, there are neither dependence nor withdrawal symptoms reported with the use of hops, nor are there any reports of adverse side effects.