You sit down with a plate of food in front of your television or computer monitor. You open YouTube, and there they are, a bunch of concerned people with microphones explaining "the problem."
Delete that mess. Tell YouTube not to show you content from those channels. Even if they're right, their content is making you sick.
Watch someone do something impressive on a bike. Take a 4K video tour of a foreign city. Challenge yourself with a trivia video.
At first, you won't be as entertained, but after a few days you'll notice you feel happier.