You are what you eat I think healthy diet is essential for everyone. Eating more healthy food like vegetables and fruits is important to improve both our physical and mental health. Junk food including candy, potato chips and fried chickens etc are something I only indulge myself in once in a while. Some of my friends call me health freak. I think it is totally worth it as I believe you are what you eat. Recently I read an interesting article about this topic . According to what I read, scientists have cast new light on the effects our diet has on our mental health. The study found that what we ate can affect and alter our brain chemistry. This explains why some people are more emotionally stable and resilient than others.