10. Eat Right
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There is a well-documented link between what we eat and how our brains function. One study showed that putting rats on a high sugar diet for a mere six weeks impaired their cognitive functioning. Being overweight has also been tied to increases in mental health problems. If you just can't get enough of your high-fructose corn syrup, the researchers also found that consuming foods rich in omega-3 fatty acids – like salmon, walnuts, and soybeans – may help counter sugar's brain drain.