Previous research has associated inactivity with type 2 diabetes and obesity, but excessive sitting can also increase a woman’s risk of developing breast cancer, claims a new study led by the Cancer Council Victoria in Australia.
Researchers conducted a Mendelian randomisation study, which uses genetic variants as proxies for a specific risk factor, such as lifelong sedentary behaviour.
Within the study of 130,957 women of European ancestry, 69,838 had tumours that had spread locally and 6,667 had tumours which had not spread yet.