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Description
Both male and female transgenic mice treated with intranasal GHK-Cu had higher alternation percentages in the Y maze, indicating improved cognitive performance, beginning as early as the second month of treatment, and continuing through the third month when the study ended, compared to transgenic mice treated with intranasal saline (Figure 1A and B)

doi: 10.1186/ar4090

The most likely cause of the fatigue is l ack of production of creatine due to functional vitamin B12 deficiency (see below)

Modify portions, steps, or training volume, and reinforce sleep and stress management practices

C., Petrosino, M., Zuhra, K
