Do you experience eye discomfort, eyestrain or even headaches after spending time in front of your cell phone or computer screen? The most common cause is the blue light emitted by these devices.
Although invisible to the human eye, blue light from screens has negative effects when received in excess, especially at night. And the worst part: many do not know that there is an easy, quick and free solution.
✅ The solution: activate the Night Light or Night Mode… and keep it activated at all times!
What is night light and why does it help?
Night light or warm mode changes the screen tones from cool (blue) to warm (yellow or orange). This simple change can make a big difference in how you feel after using your cell phone or computer for several hours.
Proven benefits of using warm light permanently:
- 👁️ Reduces eyestrain.
- 🧠 Decreases headaches associated with screen use.
- 😴 Improves sleep quality, as blue light inhibits the production of melatonin (the sleep hormone).
- 📱 Makes reading on mobile or computer more comfortable, especially at night.
- 🧘♂️ Avoids the feeling of visual stress, especially in low light environments.
How to activate it?
On mobile (Android or iPhone):
- Go to Settings > Display > Night Light (Android) or Night Shift (iPhone).
- Adjusts the intensity of the warm tone.
- Program it to be active all day, or at least from the evening until the next morning.
On Windows computer:
- Go to Settings > System > Display > Night Light.
- Activate it and select the option to keep it always active.
On Mac (macOS):
- Go to System Preferences > Displays > Night Shift.
- Activate it and choose the option to leave it on permanently.
Why leave it on all day?
Many eye care professionals and frequent users recommend keeping the light warm throughout the day, especially if you work in front of screens. Today, artificial blue light is present at all times and reducing its impact can significantly improve your digital well-being.
Conclusion.
Activating the night light is not only useful… it is essential if you spend many hours in front of a screen. You don’t have to wait until you feel discomfort: make the switch now and leave it on for good. Your eyesight, your mind and your rest will thank you.
Do it today, it’s free, it’s fast and your body will notice.
Take care of your eyes, your sleep and your health with a single adjustment!


