Many people are able to maintain healthy minds and behavior; However, as they grow up, sometimes their behavior starts changing in different ways like being spoiled, selfish, depressed, regretful, feeling guilty and many more as they get older. This research will shed light on how adults' behavior changes as they age. As the adult ages, their behavior changes from mature behavior to gradually diminished responsiveness to incapacitation. While it is impossible to stop a person from aging, there are ways to keep the mind healthy and stable and help preserve their memories longer. Human behavior changes from mature behavior to a gradual decrease in responsiveness and incapacity. According to “Invitation to Life Span,” Berger states, “Like any other part of the body, the brain slows down with age…total brain size decreases” (Berger, 2010, p. 435). Berger mentions several ways brain aging slows down. Difficulty multitasking is one of the indications of an aging brain. As people age, multitasking becomes more difficult for them in two ways: they are unable to focus on multiple goals, and distractions become harder to ignore. For example, an aging brain is able to focus solely on driving instead of talking to the passenger at the same time, and is able to read a book, but would be distracted by music. Lack of sleep is another cause of slowing down the brain's thinking process, especially short-term memory. For example, if a person is not able to sleep through the night because he has to study for his exams, that person, when he is ready to take the exam, will not retain the memory of what he was studying. Therefore, the person's brain gradually loses long-term memory b...... middle of article ......ional Forum (Vol.78, no.2), 34-37 From http://sks.sirs.comChung-Yi Li, Shwu Chong Wu and Shi Wu Wen. Occupational and Environmental Medicine, Vol. 57, no. 8 (August 2000), pp. 550-554. Longest lifetime occupation and risk of disability in activities of daily living. Retrieved from http://0-www.jstor.org.librus.hccs.edu/stable/27731369 Dementia – Signs, Symptoms, Causes, Tests, Treatment, Care. Retrieved from https://www.alz.org/what-is-dementia.aspKathleen Stassen Berger. Invitation to Lifetime. Bronx Community College, CUNY. First Edition ©2010.Melinda Smith, MA, Lawrence Robinson and Robert Segal, MA Last updated: November 2013. Age-Related Memory Loss. Retrieved from http://www.helpguide.org/life/prevent_memory_loss.htmStrock, M. (1992). Alzheimer's Disease: Mental Health/Mental Illness Retrieved from http://sks.sirs.com