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Can polyester underwear affect fertility, cause impotence?

Just like we are what we eat, our body also is susceptible to our choice of fabric and is affected by what we wear. As such, if biohacker Tim Gray’s analysis is to be believed, polyester fabric (or polyethylene terephthalate (PET), which is a synthetic or man-made fiber material made by combining coal, oil, and water, can affect fertility in both men and women. National Institutes for Health (NIH) study from 1992 noted that polyester can, in fact, act as a 100 per cent contraception for men.