Women wearing burqa from head to toe should not do so for health reasons as it deprives them absorbing vitamin D, essential for bones and general health. This essential vitamin is only available from sun rays, and in winter months that supply is limited. Burqa-ban governments should use the Noble prize winner economist 2017 advice of “nudging” when introducing such a ban which has some reasoning rather than politics. Nudging means persuasion thru education. Studies have shown nudging works better than compulsions.
Promod Puri.com 
On a lighter note, Burqas can save from sun burns..:-P
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