Layering them in one routine can deactivate both
Cell Immunol 265, 8085
However, realistic expectations remain essential for long-term satisfaction
Additionally, all people have "good days" and "bad days." People are also influenced by their environment (i.e., a disrupted schedule due to the holidays, less sunlight in the wintertime, a new teacher, etc.)
Maybe you stumbled across it while researching why your energy, recovery, and mental sharpness are not what they used to be, even though your labs look fine and your lifestyle is solid
About the latter, OCD patients were found to have elevated propagation of glutamate in the cortico-striato-thalamic-cortical systems