Body posture, specifically eye gaze direction, influences alertness levels, with looking down leading to sleepiness and looking forward or up promoting alertness.

“if you are feeling tired, it actually can be beneficial to the wakefulness systems of the brain, including the locus coeruleus and these areas that release norepinephrine to actually look up, to actually look up toward the ceiling.”

“And where you position your eyes, whether or not your eyes are upright, so to speak, looking up or directly forward or looking down, will dictate whether or not you are feeling more alert or more sleepy, respectively.”

“really paying attention to the usage of your eyes so when you look up with your eyes that'll actually open you up to feeling more awake more creative more aware look up when you're looking down with your eyes it's going to start to turn you on to more of like okay it's time to go down you know calming kind of like lower energy you know so being aware of the usage of your eyes informing the way that you feel throughout the day”