"Der Mensch ist, was er ißt." [Man is what he eats] - Ludwig Andreas Feuerbach
There is a lot truth in this statement except Feuerbach is mainly referring to how the physical food affects the state of your mind & body. I would take it a step further to say that a man is also what his mind eats.
All our thoughts originate from our brain. Our minds produce thoughts, creativity, innovation, but why do we not take time to monitor what it eats? When I say eat it means what you allow your mind to interact with. TV, books, news, music, etc.
Protect your mind. Upgrade the quality of the mental foods you are feeding yourself. Healthy mind, healthy body. I talk more about it in this video!