Memory is the retention of information over time and changes throughout our lives, from childhood to adulthood (Santrock 218). There are two types of memory, explicit and implicit. Explicit memory is memory without conscious recollection, memory of skills and routines. Procedures performed automatically (Santrock 219). Explicit memory helps with things like waking up, getting out of bed, and putting on slippers so your feet don't feel the cold of the floor. Walk out of your room on the second floor and be able to walk down the hallway and turn left to reach the stairs and safely walk down to the first floor without having to turn on the lights. You know your house “like the back of your hand” because you walk the same 20 steps down the hall and to the left every day, you walk up and down the same 16 steps on the stairs more than 3 times a day. This is explicit memory, remembering things because you do them, not because you were taught to do them. You don't leave your room and count the steps you take to reach the stairs, one, two, three... nineteen, no, your brain automatically remembers how long it took you because of "routine". Explicit memory is conscious memory of facts and experiences (Santrock 219). It's what allows you to remember the score from last weekend's soccer match, when your team scored a goal in the 90th minute, and how the scorer celebrated. You feel happy and excited because watching that celebration reminds you of what you felt when you scored the winning goal in the regional championship during your senior year of high school. This is memory, explicit facts and experiences. Explicit memory is divided into episodic and semantic. Episodic memory deals with memories of oneself as... the center of the card... from right or wrong. Memories make a person.Bibliography1) "7 stages of Alzheimer's and symptoms | Alzheimer's Association". 7 Stages and Symptoms of Alzheimer's | Alzheimer's Association. Np, nd Web. November 21, 2013.2) "The Alzheimer's Foundation of America." Alzheimer's Foundation of America. Np, nd Web. November 21, 2013.3) Bailey, Regina. "Hippocampus." About.com Biology. Np, nd Web. November 25, 2013.4) Ettinger, R.H. "CHAPTER 3." Psychology: the science of behavior. 4th ed. Redding, CA: BVT Pub., 2009. 91. Print.C5)"Latest Facts and Figures Report | Alzheimer's Association." Latest Facts and Figures Report | Alzheimer's Association. Np, nd Web. November 30, 2013.6) Santrock, John W. "CHAPTER 7." A current approach to development across the lifespan. New York: McGraw-Hill, 2012. 219-24. Press.