Why do you want to be "calmed down"? If you are bored and restless, acting like it is your body telling you to do something! You'd be at cross purposes with your brain/body if you wanted to calm down, when would you be calm enough, when you were a drug-dazed couch potato? :-)

Feelings are information; if you are feeling bored, find something that you want to do; going out for a simple walk will get rid of the restless feeling and your brain, looking around, will come up with interesting thoughts/ideas for things to think about and do so you aren't bored anymore.