Using functional magnetic resonance imaging (fMRI), scientists have proven that the majority of the human brain is nearly always active, even when we perform simple tasks. In fact, our brains are even active during sleep. Although we may not be using 100 percent of our brains all the time, this imaging technology has shown that—just like with our muscles and other bodily functions—every part of our brains will have been utilized within a 24-hour period of time.
Our goal then shifts from figuring out how to use more of our brains to how to optimize its use instead—something that we can, in fact, control. Just like the other parts of our bodies, our brains need to be nourished and exercised in order to stay fit. One way to do this is by eating a well-balanced, healthy diet, which can help improve cognitive function. Also, omega-3 fatty acids and antioxidants are known to assist with brain health.
We can also enhance specific cognitive functions such as memory and motor skills with brain exercises like word puzzles, memory games, and language learning. While the percentage of our brains being used will remain mostly the same, their efficiency will increase during these activities, and often stay healthy into old age.
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