Andrew Huberman· PhD
the brain just like with its sleep wake cycles that entrain to a regular schedule that is your brain and body get used to being active and inactive at particular times based on your exposure to sunlight your exposure to activities your social rhythms Etc if you regularly meaning for the course of about three days make it a point to focus and study at particular times again pulling your attention back it's not an automatic process but pulling your attention back to a specific location perhaps on a page or that you're listening to in a lecture your body and brain will start to entrain to that Rhythm such that you will be able to focus and attend better simply by virtue of the regularity of the timing of the exposure to the material