Lets use a few examples
minimal human data
What users typically report: Sleep quality improvements become more consistent (less night-to-night variation) Night waking decreases particularly the 2-4am waking associated with cortisol surges Morning energy is noticeably improved Recovery from physical activity feels enhanced (growth hormone release during deep sleep is improved) Anxiety before sleep may be reduced, particularly in stress-driven insomnia By the end of week 1, the picture is usually clear: Whether someone is a DSIP responder

Symptoms of B12 Deficiency The symptoms of vitamin B12 deficiency include a mixture of the physical symptoms associated with peripheral neuropathy, as well as cognitive issues: Physical Symptoms Peripheral Neuropathy experiencing unpleasant sensations in the extremities (the hands, arms, legs and feet) due to nerve damage, such as those listed above Despite feeling the minor irritating phenomenon of pins and needles, persistently feeling the sensation may suggest that you have nerve damage, which should be taken seriously Issues with your eyesight, such as visual disturbances or impairments Experiencing paralysis in areas such as the extremities can suggest that nerve damage has become severe, so medical intervention should be sought as soon as possible
It is a regulator of immune function, metabolic control, cognitive performance, and tissue repair
GHK-Cu down-regulates TGF-1 and inhibits Smad2/3 activation