Watch HDToday. As the use of plastic has gained ground in our lives over the years, there has been an inexplicable increase in a number of diseases and disorders amongst the population. In this film as part of the Why Plastic? series, we meet leading researchers looking into the reasons for these disorders. We also follow case studies of people suffering from various health conditions thought to be caused by exposure to certain every day materials including plastic. Are these people the victims of unfortunate coincidences - or is there an explanation?