Scientists find 'forever chemicals' lurking in certain smartwatch wristbands

Certain pricier styles of smartwatch wristband may not just be helping Americans stay fit — they may be exposing unsuspecting wearers to a hefty dose of "forever chemicals," a new study has found.

More expensive wristbands made from fluorinated synthetic rubber tend to contain high amounts of one such compound, called perfluorohexanoic acid (PFHxA), according to research, published Wednesday in Environmental Science & Technology Letters.

“This discovery stands out because...