A heart arrhythmia can be a life-threatening situation and requires medical attention. If you suffer with this heart condition chances are that you have already been counseled on avoiding stimulants. For some individuals who suffer with intermittent irregular beat, there is a fun technique to try with permission from your cardiologist. Cough. That's right, take a deep forceful breath and cough hard. For some people the pressure exerted during this activity will bring the heart back under control until medical attention can be consulted.