Have you ever felt like you can't remember a specific thing and it drives you crazy? Well, try living with dementia. Dementia is not a disease; it is a set of symptoms caused by another disease, which produces a progressive loss of cognitive functioning (Psychology Today). People often believe that due to old age a person may have dementia, but this is a false accusation. In old age one may forget some things here and there, but it is only when the symptoms affect the person's daily life that one can speak of dementia. The exact cause of dementia is damage to brain cells; affects how brain cells are able to communicate with each other. When cells are unable to communicate, they commonly disrupt thinking, behavior and feelings. The functioning of the synapse or from one neuron to another is very bad, which causes confusion and communication problems. Many things can cause damage to brain cells, such as diseases that cause brain deterioration such as Alzheimer's and Parkinson's. Strokes, nutritional deficiencies, and head injuries can also cause the onset of dementia in a person. The symptoms of dementia are very varied, but at least two or more mental functions must be significantly impaired to be considered affected by dementia. Memory loss and the ability to concentrate and pay close attention are two common symptoms seen in dementia patients. Memory loss is usually the earliest and most noticeable symptom (WebMD 2011). The mechanism that causes dementia is also the mechanism that causes symptoms to begin to appear. Causes and symptoms go hand in hand in the case of dementia. Worldwide, 35.6 million people suffer from dementia and 7.7 million new cases are recorded each year (WHO 2012). There are many moments in the story. In conclusion, dementia is the progressive loss of cognitive function. People suffering from this group of symptoms suffer from memory loss, disorientation, and fluctuating feelings. The brain of a person suffering from dementia is different in many ways from a healthy brain. Dementia and Alzheimer's disease put a strain on the brain by causing shrinkage and loss of tissue that explains the loss of brain function in some parts. Dementia has been divided into 5 stages, from No impairment to Severe impairment. As dementia progresses, the affected person becomes very dependent on someone's help. There is currently no known treatment for dementia, but research studies are underway to help find one. Dementia isn't just forgetting something sometimes; it's much more serious and dangerous and should be taken seriously if it's ever around.