The new feature also tweaks the color temperature of connected external displays, as well as your Mac’s built-in screen - ensuring that your circadian rhythm isn’t inadvertently affected by the light of an extra display. From here, you can set a schedule for Night Shift to be automatically enabled, and even adjust the color temperature to be warmer or cooler. Night Shift’s options can also be tweaked via System Preferences > Displays > Night Shift. The toggle is located above the date, next to the Do Not Disturb feature.Īdditionally, Night Shift can also be activated or deactivated via Siri - just hail Siri and say “Turn on Night Shift” or “Turn off Night Shift.” Users can toggle the feature on and off from the Today view in the Notification Center - which is accessed by clicking on the three-lined icon in the upper right corner of the screen. A public beta version is likely to be released in the near future. To use Night Shift for Mac, you’ll need macOS 10.12.4 - which is currently in developer beta. Even more distressing, studies have linked these biological disruptions to devastating health problems including diabetes, cancer, and cardiovascular issues. Which is all to say Night Shift mode serves an important function. It suppresses the body’s secretion of melatonin, a hormone that regulates the body’s natural clock, and prevents people from getting a good night’s rest. Many studies have shown that nighttime exposure to bright-blue light emitted by your smartphone, laptop, and energy-efficient light bulbs has a harmful impact on the circadian rhythm.

Turn on night shift mac