Dementia patients often suffer from depression, frustration, confusion and anxiety. As the examples above show, laughter plays a crucial role in not only reducing the speed at which dementia progress but also at helping them better cope with its effects. These negative feelings usually lead to behavioral problems like aggression, screaming, wanderings and open hostility to those around them. This is beneficial to the patients as well as the care providers can take care of them in a better, more efficient way.