Have you ever tried to watch a YouTube video in a dark environment? Chances are you have, especially when you end up watching cool "people are amazing" videos that keep you all night.

For the most part, the first ten videos are bearable until you realize that its putting strain on your eyes. Trust me it's not a good thing, staying up all night staring at a bright monitor, or in this case, a YouTube video might cause photophobia.

Yes, there is actually a word, in layman's term, it's called light sensitivity. In case you're wondering what it is, it's a condition (not a disease) where people experience sensitivity with certain levels of light.

In a bright YouTube videos' case, a discomfort glare might naturally occur when the light source is too strong for a user's eyes. Getting to the point, it's actually a good thing that video sharing website actually has a Dark Mode.

It might sound sinister, but it's a good way of lessening the strain caused by weekend YouTube binges.

Well, I might be exaggerating with photophobia but taking a precaution is always a good thing. Most especially if involves our eyes.

If you want to save your eyes, just follow these simple steps. But before we begin, the feature only works on an up-to-date version of Google Chrome.

Step 1. Open Google Chrome and log in to your YouTube account

Step 2. Open the browser's Developer Tools by simultaneously pressing Ctrl-Shift-I on Windows or Command-Option-I For the Mac

Step 3. On the panel (it's always on the right side) click the Console tab in between the Elements and Sources tab

Step 4. Copy and paste this code: document.cookie="VISITOR_INFO1_LIVE=fPQ4jCL6EiE" and hit Enter

Step 5. Close the Developer Tool and refresh YouTube

Step 6. Click on your profile icon (on the top right) to open a new menu that leads to a line for Dark Mode

Step 7. Click the toggle switch to Activate Dark Mode

Step 8. Enjoy