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What is the pet brain effect? Examining the science behind companion animal cognitive benefits

According to a 2022 study published in *Frontiers in Aging Neuroscience*, long-term pet ownership was associated with a "brain age" up to 15 years younger in some adults, especially dog owners. This phenomenon is part of what is known as the pet brain effect, which describes the numerous ways that owning and interacting with a companion animal can positively influence cognitive health and brain function.