CD34 and atherosclerosis: Since insufficient endothelial repair due to a shortage of hematopoietic stem cells known as CD34-positive cells accelerates functional atherosclerosis as evaluated by CAVI [7] and a shortage of CD34-positive cells is an independent risk for height loss among men aged 60 to 69 years [6], increased functional arterial stiffness due to post-prandial hyperglycemic spikes might explain the association between eating speed and height loss among non-overweight individuals.