TikTok says so. Using your phone before bed gets a bad rap — and rightfully so. It’s tough to drift off when you’re ...

It’s also because of the blue light used by the phone. “Smartphone usage, especially without a blue-light filter, exerts pronounced suppressive effects on melatonin,” a new study ...

“Blue light filters reduce light exposure by adjusting the screen's color temperature,” Goldenberg says. “However, it does not completely eliminate skin exposure.” Dim your devices Most phones and ...