You should also be aware of anemia. Being low in iron can cause mood trouble, depression, brain fog, irritability, anger, intolerance of small annoyances. A simple blood test can rule anemia in or out. Avoid or eliminate caffeine consumption as it can deplete the body of iron. Potassium, magnesium, zinc, and vitamin C play a role in metabolizing iron.
A number of years ago, I realized I was slowly becoming more and more fatigued. A simple blood test revealed I was anemic, just below the low level of normal. My potassium was at the lowest level of normal. I added meat and green, leafy vegetables to my diet for more iron, and dried apricots and sweet potatoes for potassium. Over a month’s time, I was feeling better, not running out of energy by lunchtime and no longer downing coffee or other caffeine to keep going until 3:30.
Having a tendency to scrupulosity, I was blaming the problem on spiritual sloth. I decided to pray another Rosary every afternoon. I usually fell asleep in the middle of it. There’s nothing wrong with extra prayers, but falling asleep in the middle of them isn’t of much use. My problem was not sloth, rather, I’d been eating poorly because I was living in a rented room without access to a kitchen. My solution was to purchase a very small microwave and an electric kettle so I could heat and boil foods instead of getting take-out.