The authors found that higher AEA concentrations immediately following the traumatic event were associated with a greater likelihood of PTSD diagnosis at follow‐up, and individuals homozygous for the FAAH A allele had significantly higher PTSD symptoms at follow‐up compared with CC and AC genotypes (deRoon‐Cassini et al., 2022). The gene discussed is FAAH; the disease is post-traumatic stress disorder.