A randomized, double blind, placebo-controlled trial examined the effects of intranasal insulin administration on cognition, function, cerebral glucose metabolism, and cerebrospinal fluid biomarkers in adults with amnestic mild cognitive impairment or Alzheimer disease (AD) [72]
BH4, inflammation, and neurological effects: Under inflammatory conditions, such as a bacterial infection, the normal response is for BH4 to increase
This vitamin also helps regulate GABA, an essential inhibitory agent that prevents excessive stimulation of excitation pathways in the brain leading to neuron damage
That last point carries more weight than most people realize
In terms of testosterone restoration, Dr