Air pol­lu­tion in­creases sui­cide risk by 500%

The Guardian (Nigeria) - - HEALTH NEWS -

EX­PO­SURE to air pol­lu­tion in­creases peo­ple's risk of Alzheimer's dis­ease and sui­cide, new re­search sug­gests. Life­long ex­po­sure to fine-air par­ti­cles raises peo­ple's lev­els of the 'Alzheimer's pro­tein' APOE4, which is as­so­ci­ated with rapid-on­set de­men­tia, as well as mak­ing peo­ple up to 4.92 times more likely to take their own lives, a study found.

Alzheimer's dis­ease is the most com­mon cause of de­men­tia. The word de­men­tia de­scribes a set of symp­toms that can in­clude mem­ory loss and dif­fi­cul­ties with think­ing, prob­lem-solv­ing or lan­guage.

The re­searchers be­lieve fine-air par­ti­cles enter peo­ple's brains when they breathe be­fore trav­el­ling else­where in their bodies via their blood­streams.

Past re­search sug­gests such par­ti­cles, which weigh less than 0.0025mg and are given out in ve­hi­cle-ex­haust fumes, cause in­flam­ma­tion.

In­flam­ma­tion has pre­vi­ously been linked to both Alzheimer's and men­tal-health prob­lems.

The study was car­ried out in Mex­ico City, which is home to 24 mil­lion peo­ple who are ex­posed to fine-air par­ti­cle con­cen­tra­tions above United States (U.S.) En­vi­ron­men­tal Pro­tec­tion Agency stan­dards ev­ery day.

The re­searchers an­a­lysed 203 au­top­sies of peo­ple who died at be­tween 11 months and 40 years old.

It is un­clear what caused their deaths.

The re­searchers as­sessed the au­top­sies' lev­els of proteins that are as­so­ci­ated with Alzheimer's.

The find­ings were pub­lished in the jour­nal of En­vi­ron­men­tal Re­search.

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