Much disease and disability is the result of lifestyle behaviours. For example, the contribution of imprudence in the form of smoking, poor diet, sedentary lifestyle, and drug and alcohol abuse to ill-health is now well established. More importantly, some of the greatest challenges facing humanity as a whole – climate change, terrorism, global poverty, depletion of resources, abuse of children, overpopulation – are the result of human behaviour. In this chapter, we will explore the possibility of using advances in the (...) cognitive sciences to develop strategies to intentionally manipulate human motivation and behaviour. While our arguments apply also to improving prudential motivation and behaviour in relation to health, we will focus on the more controversial instance: the deliberate targeted use of biomedicine to improve moral motivation and behaviour. We do this because the challenge of improving human morality is arguably the most important issue facing humankind (Persson and Savulescu, forthcoming). We will ask whether using the knowledge from the biological and cognitive sciences to influence motivation and behaviour erodes autonomy and, if so, whether this makes it wrong. (shrink)

The authors respond to a wide range of objections defending our argument that some forms of behaviour modification utilising advances in the cognitive sciences are desirable and need not necessarily undermine autonomy or freedom.

The fundamental problem of philosophy is whether doing it has any point, since if it does not have any point, there is no reason to do it. It is suggested that the intrinsic point of doing philosophy is to establish a rational consensus about what the answers to its main questions are. But it seems that this cannot be accomplished because philosophical arguments are bound to be inconclusive. Still, philosophical research generates an increasing number of finer grained distinctions in terms (...) of which we try to conceptualize reality, and this is a sort of progress. But if, as is likely, our arguments do not suffice to decide between these alternatives, our personalities might slip in to do so. Our philosophy will then express our personality. This could provide philosophy with a point for us. If some of our conclusions have practical import, philosophy could have the further point of giving us something by which we can live. (shrink)