occupations such as nursing or sales are “often characterized by a lack of autonomy, prolonged standing, hard work, rigid working hours, stress, a higher risk of burnout, and sometimes … inconvenient working days,” they added.
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“it is critically important to understand how workplace physical activity levels relate to cognitive impairment and
dementia,” said vegard skirbekk, co-author and professor of population and family health at columbia public health.
“our work also highlights what is called the physical activity (pa) paradox—the association of leisure time physical activity with better cognitive outcomes, and how work-related physical activity can lead to worse cognitive outcomes.”
the team used one of the world’s largest population-based studies of dementia, the hunt4 70+ study, to examine how occupational physical activity between the ages of 33 and 65 was linked to a risk of developing dementia and mild cognitive impairment after the age of 70.
they analyzed the data of 7,005 participants, 902 of whom were diagnosed with dementia later in life.
another 2,407 were diagnosed with mild cognitive impairment.
the results overall found that people doing physically demanding work had a 15.5% higher risk of having dementia or being cognitively impaired.