Get up and make yourself a drink. Some drinks are better than others. Coffee is not so good because it increases the amount of cortisol present in your body and this hormone is known to aid stress. However green tea, black tea and chamomile tea all have ingredients known to aid calmness and reduce stress and can help lower levels of cortisol in your body. The act of removing yourself from the stressful situation and having to pay attention whilst making your drink also aids the calming effect.