title: Halfway science and the heart attack.
mesh_terms: D001741:Black or African American; D000693:Anaerobiosis; D044383:Black People; D003327:Coronary Disease / Q000209:etiology*; D006321:Heart / Q000502:physiology*; D006801:Humans; D009206:Myocardium / Q000378:metabolism; D009638:Norepinephrine / Q000502:physiology; D005082:Physical Exertion; D013019:South Africa; D013315:Stress, Psychological / Q000378:metabolism; D013318:Stroke Volume
chemical_list: D009638:Norepinephrine