patients to stay away from coughing but they've now changed their minds. and you mentioned some people have heart palpitations after two cups or higher blood pressure those patients should stop with one. but if you like to drink up to five cups a day and tolerate it well then from a medical point of view there is no reason to stop. the. exceptions to that rule are pregnant women or those who show symptoms of bone loss as well as patients with cardiac arrhythmia. the study shows that drinking coffee could have negative effects in such cases there are more than a thousand compounds in coffee research is still trying to figure out exactly which aren't good for you you could just has a little shall we have to look and see whether we can enrich a particular substances in the beans and whether we'll be able to isolate them for possible uses medications that's the direction research is taking over. it's