IKBKB and overnutrition: Chronic overnutrition induces inflammation‐like changes in the hypothalamus mediated by low‐degree activation of proinflammatory NFκB and its upstream IKKβ (Kleinridders et al., 2009; Purkayastha, Zhang, & Cai, 2011; Thaler et al., 2012; Zhang et al., 2008).