Online brain games can be a fun challenge, offering entertainment and the satisfaction of achieving various levels. The amount of cognitive benefit depends on the type of game. Online brain games can help relieve boredom while offering new ways to test thinking skills.
The specific benefits of online brain games are debatable. According to an article in Scientific American, some brain games may help enhance memory or stimulate various areas of the brain. Games may create better "mental fitness", improve cognition, or improve auditory processing. However, the specific amount of benefit remains unclear, and it depends on the game or activity.
While brain games can be interesting, specific cognitive skills rehab programs have shown to have promising benefits to individuals with Alzheimer's. These skills pertain to real life skills that require a certain level of cognitive functioning.