glutathione iron and parkinson& 39 COVID-19 related neurological manifestations in Parkinson's disease: has ferroptosis been a suspect? Targeting Ferroptosis in Parkinson's Disease:
Description
Immune dysfunction in schizophrenia spectrum disorders

Unlike whole-body energy balance (balance between energy intake and expenditure), global brain energy balance is not altered during low-intensity exercise or during the transition from rest to exercise, however, increased metabolic rate is detectable at the whole-brain level during vigorous exercise (Reference Smith and Ainslie64,Reference Coxon, Cash and Hendrikse65)

POI, primary ovarian insufficiency

Patients who travel often and find themselves experiencing jet lag benefit from this treatment as well

The practical question isn't "is B12 the reason I'm anxious?" It's "is low B12 making my anxiety worse than it needs to be?" For a lot of people, the answer is yes
