What is polygraphy?

What is polygraphy?This is the process of using an instrument called polygraph, which is also popularly known as a lie detector.

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World Lupus Day: Date, History, Significance, Facts about autoimmune disease

World Lupus Day: Date, History, Significance, Facts about autoimmune disease

World Lupus Day is dedicated to people worldwide who suffer from this debilitating autoimmune disease …