The presenter, 36, has previously opened up about experiencing depression and having her first panic attack last year.
She told The Sunday Telegraph’s Stella magazine: “Social media is both a dark and brilliant thing for mental health.
“If I’m feeling down I won’t go on it because it’s nearly impossible not to compare yourself unfavourably to others and to feel a bit down. I only scroll through when I’m feeling happy.
“If I feel down I have a social media detox for a while. You have to remember you’re not looking at people’s real lives but just edited highlights of it.”
She said of her first panic attack last year: “I was driving on a motorway and my chest began to tighten and I felt like I was going to black out. I pulled over and had to be driven home.
“There was a lot going on in my life, with family members becoming ill, and I was just becoming exhausted from plate-spinning.”
And the mother-of-two with husband Jesse Wood, son of Rolling Stone Ronnie, added: “I still have my depression triggers, but I now know how to handle them.”