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Yup! I've also found what I eat is important.

Carbohydrates to be a source of brain fog as I get older. I've also found cutting them out to 0g/day seems to increase anxiety for me (studies have shown reducing it below a certain amount... 50g?... definitely increases cortisol, a stress hormone). So finding a good balance in the diet is key.

The temptation is great and common to go cold turkey or gung ho and I don't claim to know anything about your particular protocol, but my own observations lead me to believe that the body can adapt to some unusual regiments quite nicely, if you allow it time and space.

Also go outside.

More indoor lighting can make a big difference, especially for folks with Seasonal Affective Dissorder.

CO2 can also cause brainfog, so measuring CO2 content and cracking open a window can really make working indoors less constricting.

How much of this can I replace with a fast acting pill?

All of it. Your body won’t last very long though.