My wife is addicted to viewing traumatic things

My wife has always been kinda addicted to traumatic things. She would watch the most depressing documentaries very often. When tragedies happen, she would consume all of the news for weeks. It's pretty obsessive.

Lately, she has been consuming lots of content from the genocide in Gaza. She is watching this stuff ALL day and night. She has stayed up late crying watching the most heartwrenching videos. I am pretty sure it is starting to make her depressed.

I don't want to police what she watches at all. But I don't know how to convince her that this isn't healthy for her. I think we all need to be aware of what's going on but this is too much. How would you go about this?