Dementia has become the leading cause of death in Australia, affecting approximately 446,000 individuals, a number expected to nearly double by 2065. Recent research highlights that nearly 40% of dementia cases may be linked to modifiable lifestyle factors. Engaging in hobbies can significantly contribute to brain health by enhancing cognitive reserve, which refers to the brain's ability to adapt and compensate for age-related changes. A systematic review indicated that leisure activities, including physical, cognitive, and social pursuits, lower dementia risk. Notably, individuals with at least one hobby in mid-life had a 19% lower risk of developing disabling dementia. Furthermore, those with multiple hobbies experienced a 23% reduction in risk. The benefits of hobbies stem from their ability to challenge the mind, promote physical activity, and foster social connections, all of which are crucial for maintaining cognitive health. Ultimately, while hobbies are not a guaranteed prevention method, they offer an enjoyable way to mitigate several risk factors associated with dementia.