'Forever chemicals' are everywhere in our tech and almost impossible to avoid

The term “forever chemicals” is floating around more than ever. If you’re wondering why folks are so worried about them, the clue’s in the name.

These substances stick around for a long, long time, and it’s not clear how safe they are. They’re also everywhere, from your phone and smartwatch tech to carpets to nail polish.

Perfluoroalkyl and polyfluoroalkyl substances, or PFAS for short, are synthetic chemicals, so they’re not found in nature. And now, both Apple and Samsung are being sued for wearables that release high levels of PFAS.

So, what’s the deal and how worried should you be? I’ve got the intel.

Why PFAS get used so much

In gadgets, they waterproof circuits, keep down the heat levels and add durability. They make your cooking pans nonstick, strengthen cardboard and keep mascara from running. In factories, they keep equipment running smoothly and corrosion-free, and in firefighting foam, they suppress and cool flames.

We’re talking about thousands of chemicals here, made on demand to do specific (and valuable) jobs. No wonder it took so long for us to start asking about the health and safety trade-offs of using PFAS. (Ahem, anyone else thinking about asbestos?)

The health risks of PFAS

There’s no direct link between PFAS and disease, but there are a lot of warning signs. I did some digging, and scientific studies associate these forever chemicals with cancer risks, kidney disease and fertility problems. Something’s not right.

Scientists are still figuring out how PFAS damage the body and what level of exposure is dangerous. Until then, what are you supposed to do?

Take it into your own hands

Know the big offenders: Smartwatches, fitness trackers and water-resistant phones use PFAS for durability and waterproofing. Letting a PFAS-loaded band sit on your wrist all day probably isn’t the best idea. A recent study showed cheaper bands contained fewer “forever chemicals” than the expensive name-brand bands. All the under-$15 bands were cleared. Here are safe options for Apple Watch and Fitbit.

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