From Lucy Roberts
We all know that wind farms benefit the environment, but it is less well known that they can produce a nocebo effect: people predisposed to dislike them experience adverse health effects due to their proximity. Kay Siddell (27 October, p 28) finds their motion so disturbing that she keeps her curtains closed and takes vitamin D to compensate for the lack of sunlight.
Happily, information alone should be able to “cure” this adverse health effect.
As very little ultraviolet light of the wavelength necessary to stimulate vitamin D production can get through glass, closing the curtains will have virtually no effect on the amount of vitamin D her body produces indoors.
Wantage, Oxfordshire, UK
