New research from the US suggests drinking coffee in moderation, that is four European cups (equivalent to two 8-ounce American servings) per day, may protect slightly against heart failure, contradicting the guidelines of the American Heart Association that currently warn against regular coffee consumption. You can read a paper on the study, by researchers at Beth Israel Deaconess Medical Center (BIDMC) and Harvard School of Public Health in Boston, in the 26 June issue of the journal Circulation Heart Failure.