RYR1 and Anxiety: Among them (normalized by mitochondrial mass), NADH-linked ATP production with anxiety (r = 0.469; p = 0.002); succinate-linked ATP production with anxiety and PRI (r = 0.370; p = 0.01); CCO activity with FXPOI diagnosis (r = 0.310; p = 0.02), anxiety (r = 0.407; p = 0.008), PRI (r = −0.565; p = 0.01) and FSIQ (r = −0.369; p = 0.02); and basal respiration with PRI (r = −0.653; p = 0.003) and PSI (r = −0.517; p = 0.02).