iOS 18's beta version offers new features to help you personalize your iPhone, including the ability to remove the flashlight from your lock screen.

It's just the light on the back of your iPhone, yet that flashlight is remarkably flexible — and there are so many ways to turn it on or off quickly.

An eye doctor says that any bright light, including from computers, can interfere with sleep.

How to add the flashlight to the iPhone 13 home screen Another possibility, and not really one you have to do considering your other options, is to put a flashlight icon on your iPhone home screen.

To turn off the flashlight, you can tap on the back of your iPhone as well, but you can also just turn it off from your lock screen if that's easier.

From glasses and screen protectors, to better bulbs, we review the best blue light-blocking products to help with sleep, stress and strain.

A recent study demonstrated that cutting blue light alone did not improve people’s reported comfort after a long computer session any more than simply dimming the screen.

Eventually, the flashlight was built into the Android operating system, and today it's just a swipe away on most phones. Here's how to turn on the flashlight on your Android phone.