“…For instance, we recently showed that an impaired L-FMC in the presence of a preserved FMD characterizes the coronary slow flow phenomenon [6], a condition where resting coronary resistances, but not microvascular reactivity, are abnormal. As well, emotional stress is a known trigger for the Tako-Tsubo cardiomyopathy [7,8], which was also associated with impaired L-FMC and preserved FMD in a case report [9]. The present data suggest that, even in young healthy individuals, emotional stress associated with a sport watching may cause endothelial dysfunction.…”