2. Poor concentration
Another subtle sign of an unhealthy gut is your inability to focus on day-by-day tasks. How so? The neurotransmitters produced in your gut are connected to your mood and one of the most important cognitive abilities, namely, concentration.
Studies have shown that gut microbiota dysbiosis, a condition determined by an imbalance of the microorganisms within our intestines, can affect our abilities to learn and memorize. It can even lead to inflammatory reactions in our brains.