Rickets is making a comeback among children in England, due to factors like excessive use of sunscreen, nutrition, and staying indoors too much (e.g. playing video games).  The doctor in the article says it's a situation like England faced in the 17th century.  However, wasn't rickets more prevalent in the 19th century as the Industrial Revolution was in full force, making children work in factories for long periods of time?Middle class children suffering rickets