This new study by the Allard lab reveals that exposure to the plastic chemical Bisphenol A causes a transgenerational impact on fertility that lasts for 5 generations. The authors also dissect the epigenetic machinery behind this effect and were able to reverse the inheritance of the effect. The work can be found in Cell Reports here:  https://www.cell.com/cell-reports/abstract/S2211-1247(18)30637-5