Several studies have revealed that there is a strong connection between the type of bacteria that is in our gut, our brain chemistry and behaviors associated with that bacteria. Some scientists believe that the bacteria found in our digestive system may help to mold our brain structure and possibly influence our moods, behavior, and feelings.
In one study on mice changes in brain chemistry and behavior were reported when scientists replaced gut bacterial of anxious mice with bacteria from fearless mice. These mice became less anxious and more outgoing. The opposite became true when bold mice received microbes of anxious mice. This study revealed the strong connection between what goes on in the intestine and how our brain responds to such (Stein, 2013).
A separate study was conducted on mice who exhibited autistic-like behaviors such as anxiety, sensorimotor, and communication abnormalities. These mice were given a probiotic which significantly reduced, if not corrected their behaviors. This again displays the significant need for intestinal health and its role in behavioral symptoms (Hsiao, 2013).
There are many foods that play a grand role in brain and body wellness. However there are some that are particularly effective when it comes to short and long term brain health. They are primarily mono and polyunsaturated fats such as avocado and walnuts. Others have powerful antioxidant affects such as blueberries and other deep colored fruits. While many herbs and spices can improve mood and memory. Regardless, the more whole foods you have in you diet the greater odds you have of promoting brain and body health.