Brain-Fitness

Dementia: negative thinking linked with more rapid cognitive decline, study indicates

Demen­tia affects an esti­mat­ed 54 mil­lion peo­ple world­wide. There no cure, but reports indi­cate that approx­i­mate­ly a third of demen­tia cas­es may be pre­ventable, which is why many researchers have begun to focus on iden­ti­fy­ing risk fac­tors. This would allow for bet­ter per­son­alised inter­ven­tions that may be able to reduce risk, delay, or even pre­vent the onset of demen­tia.

Cur­rent research shows that genet­ics, high blood pres­sure, and smok­ing are all risk fac­tors for devel­op­ing demen­tia. But a lot of peo­ple don’t realise that there is also a rela­tion­ship between men­tal ill-health and high­er demen­tia risk too. Stud­ies have shown that depres­sion, anx­i­ety, and post trau­mat­ic stress dis­or­der are all linked to a high­er risk of devel­op­ing demen­tia in old­er age. Our recent study builds on this research by exam­in­ing whether a style of think­ing that is com­mon to these men­tal health con­di­tions is asso­ci­at­ed with indi­ca­tors of Alzheimer’s dis­ease, the most com­mon type of demen­tia.

Peo­ple expe­ri­enc­ing men­tal ill health fre­quent­ly engage in a style of think­ing called “Repet­i­tive Neg­a­tive Think­ing”. This style of think­ing involves the ten­den­cy to have neg­a­tive thoughts about the future (wor­ry) or about the past (rumi­na­tion), and these thoughts can feel uncon­trol­lable.

In 2015, I devel­oped a hypoth­e­sis called [Read more…] about Repet­i­tive neg­a­tive think­ing may increase (or per­haps be caused by) cog­ni­tive decline and Alzheimer’s pathol­o­gy