Step 2: Select Displays in the pop-up window. In macOS Ventura and later, the utility is called System Settings. Alternatively, click the System Preferences icon on the Dock. Step 1: Click the Apple logo in the top-left corner and select System Preferences on the drop-down menu. As with Windows, the feature is easy to turn on and configure to your tastes. Image used with permission by copyright holder MacOSįirst introduced in iOS, Apple brought Night Shift to Macs in macOS Sierra in March 2017. ![]() By reducing the amount of blue light, however, the Night Light feature will then limit the impact of using your Windows PC late at night - you could find it easier to get to sleep, and your sleep might be deeper and more restful. After a while, your eyes will adjust to the change, and it should be less obvious. When you first turn the feature on, you’ll notice the color shift immediately. Then, you can either choose to let Night Light turn itself on at sunset and off at sunrise - automatically determined by your location - or you can set the time manually by clicking Set Hours and choosing when the feature should turn on and off. Step 5: To set the schedule, toggle the Schedule Night Light option to on. In Windows 11, hit the arrow key to the right to access these settings. Here, you’ll find options for turning Night Light on immediately, adjusting the strength, and scheduling when it turns on and off. Step 4: To configure the Night Light feature, click the Night Light Settings link located under the toggle. In Windows 11, you'll find the setting in the Brightness & color section. Scroll down on the right and toggle on the Night Light setting. In Windows 11, you'll need to select it from the list of categories on the right. Step 3: On Windows 10, the Display category opens by default. How to back up your Mac and keep your files safely stored ![]() How to add a signature in Gmail on desktop and mobile How to install Android apps on Windows 11 Step 2: Choose System in the pop-up window. Alternatively, you can press the Windows + X keys and then click Settings. Step 1: Right-click on the Start button and select Settings on the Power User menu. Turning the feature on is a simple process. Called Night Light, this feature shifts the Windows 10 and 11 display to show warmer colors that reduce the amount of emitted blue light. Microsoft added a blue light-limiting feature to Windows 10 in the Creators Update released in April 2017. That’s why using a blue light filter is so important. Even worse is the blue light emitted by fluorescent and LED lights - like those on our various device displays - which cause us to be more alert and produce even less melatonin. When we use artificial lighting to extend our day, however, our bodies get confused, and the various sleep signals are disrupted. That induces our hypothalamus to start the process of producing melatonin and other sleep hormones and reducing our body temperature. In the most natural setting, which is one where we’re only exposed to sunlight, our retinas sense when the sun descends and the environment grows darker. Sleep is a part of the circadian rhythm, which is the cycle of biological processes that are determined in part by the levels of light and dark exposed to our bodies. ![]() The reason blue light hurts is purely biological. Image used with permission by copyright holder What’s the problem with blue light?
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