According to Goleman (2008), Depression is not fully understood by society, or even by medical professionals; including psychologists, counselors, doctors, etc. Depression relates directly to psychology because it alters people's states mentally, emotionally, and even physically. Brain function plays a very important role in both the causes and the treatments for depressive disorders. A few neurotransmitters inside the brain, (serotonin, epinephrine, and dopamine), participate to mood stability, and abnormal levels of these can lead to mood disorders, overall creating a depressive state (Orchard, 2009).Through much research, it has been shown and proved that the brain is able to make new neural pathways just by changing the way that it thinks (Orchard, 2009).This has been shown to be a very effective tool in treating depression (Orchard, 2009). If an individual responds to specific life experiences, events or traumas in a negative way, then when a similar event occurs in the future, the person triggers an identical response to a per-existing situation (or pathway) (Orchard, 2009). If the individual finds the will power to try and break the cycle, and engage in positive thinking patterns, then slowly they will start to build themselves up (Orchard, 2009). If someone has become damaged due to stress, an experienced trauma, or through genetics, his or her brain has the power to heal all of the damage. The mind and brain constantly changes through experiences, or we can "train" our brains to think in new and prospecting ways. Depression is growing from generation to generation, and based on research, is beginning to show mostly in young adults and adolescents. "Genetic factors are said to be 30 percent responsible, while lifestyle factors account for 70 percent" (Orchard, 2009, p. 4). People can make positive changes in their social, emotional, and even their personalities by making specific changes in their behavior and environment (Orchard, 2009, p.