FAAH and Anxiety: In nonclinical adults, individuals homozygous for the FAAH 385A allele demonstrate enhanced fear extinction and protection against stress‐induced negative affect (Mayo, Asratian, Lindé, Holm, et al., 2020; Ney et al., 2023; Spohrs et al., 2022), as well as lower levels of anxiety than CC homozygotes (Dincheva et al., 2015; Spohrs, Ulrich, Grön, Plener, & Abler, 2022).