30/01/2024
Your gut changes your brain.
Cutting-edge research shows that gut bugs can change the actions of your amygdala (the brain’s center of fear), hippocampus (the center of emotional regulation and memory), and prefrontal cortex (the CEO of your brain).
Communication between the gut and brain plays a key role in the development of anxiety, depression, and cognition—meaning that you need healthy and diverse microbiota in order to develop healthy and diverse feelings, thoughts, and habits.
Food is information not only for the DNA of your cells but also for the DNA of the microbes in your gut, known as your microbiome (think of it as your second genome).
The food on your fork determines gene expression, hormone levels, immune activity—even stress levels in your gut, your brain, and the rest of your body.
Not only that, but a change in the food you eat alters the activity of the gut microbiota rapidly—within one to four days, and in some genes within six hours. That’s fast!
When overly stressed, the HPA axis may promote the growth of bacterial pathogens and yeast, thereby altering the gut-brain axis, making us inflamed and craving sugar, bread, grains, and dairy.
Stress can cause the gut wall to be more permeable, allowing bacteria to cross the barrier and activate an immune response, which in turn alters the microbiome and can disrupt the blood-brain barrier. Which then makes the HPA go wacky.
Bottom line: good gut health is essential.