The risk of de­men­tia

Down to Earth - - SCIENCE -

aside, as­tro­nauts could be fac­ing a unique threat—de­men­tia. Sci­en­tists say ex­tended space­flights cause long-term brain dam­age, re­sult­ing in cog­ni­tive im­pair­ments and de­men­tia. They sub­jected ro­dents to charged par­ti­cle ir­ra­di­a­tion. Six months af­ter the ex­po­sure, they found sig­nif­i­cant lev­els of brain in­flam­ma­tion and dam­age to neu­rons.

Sci­en­tific Re­ports, Oc­to­ber 10

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