background on Skin

Before 1348 leprosy is the most terrifying illness which people can imagine. Leprosy is known to us as Hansen’s disease but in the fourteenth century it can include all manner of skin ailments, includ...

The definition of the word habit, according to Merriam-Webster, is “a usual way of behaving: something that a person does often in a regular and repeated way.” In the American Journal of Psychology it...

The concept of humanity’s being divisible into different races has no scientific validity. This has always been the case, even before the advent of rapid global travel enabled the further mixing of pe...