Brain fog affects many healthy young and middle-aged people. And while there are many illnesses and medications that can contribute to muddled thinking, that isn't what I'm talking about today. I'm talking about otherwise healthy people who suspect that they are living under a cloud that compromises their mental clarity. They just don't feel as sharp as they used to. They are always thinking with … [Read more...] about Brain Fog: Does Your Brain Need a Tune-up?