NR4A3 and insomnia: Likewise, NR4A3 was significantly (P < 0.05) associated with metabolic (e.g., fat-free mass), nervous/neurological (e.g., neuroticism and insomnia) and cardiovascular (e.g., resting heart rate) traits (Fig. 4e and Supplementary Data 25) and was dynamically expressed in adipose, cerebellum, heart and artery (Fig. 4d).