We all know man-made chemicals are damaging ecosystems across the planet. But could certain chemicals also be negatively affecting human fertility?

Dr Shanna Swan, an environmental and reproductive epidemiologist at Mount Sinai Hospital in New York and the author of Count Down, predicts that current trends could not continue much longer without threatening human survival.

Video by Izabela Cardoso & Fernando Teixeira
Executive Producer: Camelia Sadeghzadeh

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