¹¹Usually, people want things that they like, and vice versa. However, recent research has found that in some cases, people can want things which they don’t like (Berridge and Kringelbach, 2015)—in the precise sense that those things do not produce physiological pleasure reactions. This phenomenon is one of the underlying mechanisms in drug addictions: An addict may want and consume the drug without actually deriving any pleasure from it. In fact, such desires don’t even need to be conscious in humans. See also footnote 24 in Chapter 5.