Here it is.

From deep inside your audio device of choice.

Well, as holiday season, ladies and gentlemen, what could be better than getting

some forever chemicals?

Deliver to you by your wristwatch.

Smart watches and fitness trackers have become ubiquitous forms of wearable tech.

They may expose the skin to so-called forever chemicals in the process.

Forever is not long. More expensive wristbands made from fluorinated synthetic rubber revealed particularly

high amounts of one forever chemical. Your per fluorohexonoisic acid, according to a study

published in environmental science and technology letters. Letters, this discovery stands out because of the very high concentrations of one type of

forever chemical found in items that are in prolonged contact with our skin, says the author

of the study. These are chemicals, PFAS, per and polyfluoralkyl substances.

They're very good at two things lasting seemingly forever in the environment and repelling water, sweat, and oil.

Well, I do that.

Because of the latter properties, manufacturers include these chemicals in many consumer products.

Your stain resistant bedding,

menstrual products and fitness wear,

including smart watch and fitness tracker wristbands.

The bands contain fluoroelestometers,

synthetic rubbers made from chains of forever chemicals to create a material that avoids

discoloration and repels dirt. This durability makes the bands great for sweaty workouts. It might

also present a source of these compounds to get under the wearer's skin, literally.

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