& Pande, V
It helps produce red blood cells, keeps your nervous system in good shape, and plays a direct role in how much energy you feel day to day
NewStimulants, Diet & Cognitive Neuroscience 4 July 2026 Dihexa for Caffeine, Coffee & Energy Drink Brain Fog: Adenosine, the Crash, Withdrawal & the 2026 UK Review I run on coffee so why am I foggier than ever? The counter-intuitive answer: most caffeine brain fog is caffeine wearing off , not the caffeine
For hair , the same logic applies, more so
Higher-dose oral B12 (e.g., 1000 g daily) is sometimes used but should only be considered under clinical supervision with appropriate monitoring, particularly in cases of malabsorption where intramuscular treatment remains the first-line approach in UK practice
The logic: sicker patients require more resources, so practices managing genuinely sick populations are paid more, but only if the diagnosis codes reflect that complexity