Research has shown that if you stare at a screen all day and into the evening, it can impact on your quality of sleep and disrupt your body’s natural rhythms. For these reasons, blue light filters are incredibly important.

Many smartphones now have a blue light filter mode built in…but even if yours don’t you can achieve the same effect by downloading an app.

On a desktop device your monitor may also have a low blue light mode or in Windows you can enable “Night Light”  and on Mac OS there’s a feature called “Night Shift” to lower blue light output.