Earth Sciences homework help. This file of PSY 370 Week 1 Journal Biocycles, Brain Functions, and Learning comprises:”You may have noticed that you have natural high and lows throughout the day” (Jensen, 2008, pg.25). Thinking about your own 90-minute cycle and how it may relate to yourself and learning, how would you prepare yourself for taking a big test in your course/class at the end of the day?