There are a lot of factors that change with age. For example, I developed an allergy to gluten a few years ago. Took 2 years to figure out why I was brain foggy

There are a lot of factors that change with age. For example, I developed an allergy to gluten a few years ago. Took 2 years to figure out why I was brain foggy and tired (and diarrhea) all the time. What do you know, my favorite food became poison! When I cut glutenous foods from my diet, mental clarity was restored. NOT saying "gluten-free" is the correct answer. Just saying there could be underlying issues with a symptom of brain fog.