The Press and Journal (Inverness, Highlands, and Islands)

Can­cer link to blue light ex­po­sure


Ex­po­sure to the blue light emit­ted from mod­ern street light­ing can lead to an in­creased risk of breast and prostate can­cer, ac­cord­ing to re­searchers.

Sci­en­tists used night­time images taken by as­tro­nauts on the In­ter­na­tional Space Sta­tion in or­der to eval­u­ate out­door lev­els of ar­ti­fi­cial light and com­pared that to health data from 4,000 peo­ple aged be­tween 20 and 85.

The re­searchers, led by the Barcelona In­sti­tute for Global Health and in­volv­ing the Univer­sity of Ex­eter, found the bluer the light emis­sion that peo­ple in large cities were exposed to, the higher the risk of can­cer.

Re­searchers hy­poth­e­sise that LED lights may dis­rupt the body’s 24hour cy­cle known as the cir­ca­dian rhythm which in turn af­fects hor­mones.

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