Physically demanding jobs, such as salespeople, nursing assistants, farmers, and livestock producers, increase the risk of dementia by 15.5% compared to low physically demanding jobs.
Lack of autonomy, prolonged standing, stress, and rigid working hours in nursing and sales gigs contribute to higher dementia risk.
Higher levels of leisure-time activity are associated with a lower risk of cognitive impairment, while cognitively stimulating jobs like teaching and engineering help maintain high cognition later in life.