Your brain is getting a workout and just like your body would be tired after running so will your brain. You might also consider a change of scenery to break the connection in your brain between reading and sleep. Youre likely running without enough sleep something your body lets you know when you get comfortable reading. Studying when youre too tired isnt productive. You see when youre giving readings or connecting with spirit its like youre flexing one muscle for an extended period of time.
Iron acts like a train car that transports oxygen in your blood. Your brain is getting a workout and just like your body would be tired after running so will your brain. The tiredness of the eyes is very common with reading. The tiredness of the eyes is probably due to the continuous action of many small muscles used in moving the eyes and focusing while reading. So if reading is your passion and you get sleepy quickly then remember to try to read aloud or drink a cold glass of water or even find yourself an excellent energy-boosting snack to keep you alert.
So when Im reading my eyes get very heavy and to the point to where I am almost in the semi dream state. Theyre tired they get dizzy when they stand up they. If youre in the habit of studying daily then you might worry about skipping a day but sometimes you need to do it. Then Im tired the rest of the afternoon so by the time I get home I dont want to do anything but go to bed. People with low iron dont have enough cars on their train Friedman says.