Heffernan KS, et al. - Experts aspired to investigate central artery stiffness and hemodynamic pulsatility during the cognitive engagement in younger and older adults. As per the outcomes, older adults experienced increases in large artery stiffness during the cognitive engagement. This could prevent effective buffering of pulsatile hemodynamic energy entry into the cerebrovasculature. This finding was important as pulsatile flow during the cognitive engagement was associated with overall cognitive performance and not mean flow per se.