There are many different kinds of dementia with many reasons why a person may develop the forgetfulness that is associated with the condition. Here we take a look some of them.
Some forms of dementia can be reversed such as head injuries that either recover naturally or are treated with medication.
Other types of dementia cannot be treated and are classed as progressive dementias (where there is no cure and the person worsens with time). These form of dementia are caused by having a disease that affects how the brain functions.