Effects of caffeine, sleep loss, and stress on cognitive performance and mood during US Navy SEAL training. 5-HTP can increase endogenous cortisol which releases anabolic hormones and produces a greater anabolic response during weight training sessions. McGlade et al. discovered women who supplemented with Cytidine 5’-diphosphocholine for 28 days were able to significantly improve attention focus and attention inhibition compared to placebo.