SYDNEY: Pop diva Miley Cyrus has opened up to Australian television about her life, saying Googling yourself is bad for your brain.

Speaking ahead of her Australian tour the former squeaky clean child star of Hannah Montana also spoke about why she has posted images of herself smoking marijuana on social media.

“I put pictures of me smoking weed, I’m not going to lie, on my Instagram because I was brought up in the way that we never thought marijuana was bad,” she told Channel Seven on Sunday evening.

“I don’t promote it in my songs... it’s not like I’m sitting around telling a bunch of kids to do a bunch of drugs.”

Pressed on the topic, the 21-year-old, who has “love your brain,” tattooed on her body replied: “You know what hurts your brain? Googling yourself.

“You know what hurts your brain? Instagram. You know what hurts your brain? Sitting there reading comments on Facebook.

“I have a 14-year-old sister and I go through her comments and people are calling her a slut and that’s a 14-year-old. So I think that’s hurting your brain,” she said.