“…Planned Behavior: it studies the contribution of the TPB to explain the blood donation behavior (BDB) (Lemmens et al, 2009;Masser et al, 2012). Young people behavior responds better to self-efficacy and attitude, personal and subjective norms (perceived social support) (Lemmens et al, 2005;Veludo-de-Oliveira et al, 2013), while general population's one is better explained by perceived behavioral control, including factors facilitating act, anticipated regret, attitude, moral norms, past experience and level of education (Godin et al, 2005;Boenigk et al, 2015), and there also differences between new or experienced blood donors (Lemmens et al, 2009;Boenigk et al, 2015). The benevolence hypothesis, rather than altruism, is supported (Ferguson et al, 2008).…”