The reason, according to The New York Times, is radiation. Cell phones give off small amounts of it. But if that small amount is in constant contact with a human body, like a phone that lives in someone's hands and pocket, it could add up.

And smartwatches could be just as dangerous.

Several studies have linked cell phones to dangerous side effects. The International Agency for Research on Cancer called phones "possibly carcinogenic," but relatively safer if they're kept far from the head.

A Swedish study said that lengthy calls could triple the risk of a type of brain cancer.

But it's not all doom and gloom for the smartwatch. The Apple Watch doesn't use a 4G signal, just Bluetooth and WiFi. There's no evidence that those frequencies are bad for the body. However, other watches, like the Samsung Gear S, use those potentially harmful frequencies.

Read the Times' full breakdown.

About the Author

Keep Reading

Foo Fighters closed out Shaky Knees 2024 at Central Park with extended versions of their biggest hits. The indie rock festival has moved to Piedmont Park for this weekend's event. (Ryan Fleisher for the AJC)

Credit: Ryan Fleisher

Featured

In this file photo from October 2024, Atlanta Braves outfielder Jorge Soler and teammates react after losing to the San Diego Padres 5-4 in San Diego. The Braves and Soler, who now plays for the Los Angeles Angels, face a lawsuit by a fan injured at a 2021 World Series game at Truist Park in Atlanta. (Jason Getz/AJC)

Credit: Jason.Getz@ajc.com