You are what you eat: that’s obvious. But have you wondered how social media affects your brain?

It is very hard to un-hear something. Once you have been exposed to an idea, it is impossible to remove the stain of that idea out of your consciousness. 

You can try and counter it, to disprove it, to ignore it or to fill your mind with other thoughts. Regardless, once it is in, it is there forever. Whether or not you asked to have that piece of information is irrelevant...