Rolf Halden, Associate Professor at the School of Sustainable Engineering at Arizona State University and assistant director of Environmental Biotechnology at the Biodesign Institute, surveyed available literature on the subject and concluded that, despite 50 years of studies, we still don’t have a definitive answer. The reason for this is extremely worrying. He cites the lack of good controls. Why is there a lack of good controls to compare with those affected by plastics? Because finding humans that have not been exposed is almost impossible. Plastic exposure is a global phenomenon – there simply isn’t an available control group of humans left. Arizona State University reports that plastics and their additives are now inside almost every one of us. Including you. You ingest plastics with the food you eat and the water you drink. If you were to analyse a urine or blood sample from pretty much anyone you know, including yourself, BPAs and phthalates would show up.