Blood donation might not always be a pleasant experience, as it is associated with a number of stress reactions. Although a small increase in pre-donation blood pressure at the subsequent visit is observed after experiencing an adverse event reaction or deferral, fluctuations in blood pressure during a blood donation have not been investigated so far. It is unclear whether blood pressure rises (because of experienced stress), drops (because of the loss of volume) or remains constant. This might have an effect on the donor’s haemostasis and the quality of the derived blood products. You can find more information about a internship you can send M.Hoogerwerf@sanquin.nl.