When Trump was in office (I
love saying that in the past tense, BTW), MrsT would obsess over the news. She'd start with her favorite news source, then onto the next, then the next, until she'd cycled through the lot...then back to the beginning again. Neverending loop of reports on Trump's shenanigans, from 8AM until she went to bed at 11PM.
My habit was to check the online news over my lunch, then to watch the evening news report on TV, and that was that.
Her mental health was definitely affected, and she was worrying so much, she couldn't sleep half the time.
We'd gone to the doctor (for something unrelated), and when the doc was interviewing her, she (the doc) asked about her (MrsT's) media consumption, and we went over that, and then she asked me mine, and we talked about that, and she looked at my wife point-blank and said, "Do what he does or you'll go crazy."
Lasted all of three days.
So, yeah, either take a break, or just set up a time and say, "11AM-noon is my time for news, then that's it for the day."