Living through the shadow of ongoing conflict brings a type of stress that is both mental and physical. In Dubai, while the city remains safe, the emotional weight of regional conflict is a burden we carry every day. This kind of chronic stress triggers a constant state of ‘fight or flight,’ which can deplete our energy, weaken our immunity, and affect our focus. In these times, your gut is literally your “second brain,” and keeping it healthy is a form of defence.
Prof. Dr Giovanni Leonetti explains digestive wellness and how, by understanding the brain-gut connection, we can actually use our diet to “talk back” to our brain. When we nourish our gut with the right nutrients, we are effectively sending a signal of safety and stability to our nervous system.
Digestive wellness is a primary driver of your body’s resilience, operating through a bidirectional communication network known as the gut-brain axis. A healthy gut microbiome helps regulate cortisol levels. Beneficial bacteria such as Lactobacillus and Bifidobacterium can reduce cortisol levels and increase GABA, an inhibitory neurotransmitter that calms the nervous system during stress.
Chronic stress increases gut permeability, also known as leaky gut, allowing toxins to enter the bloodstream and trigger inflammation. This inflammation sends stress signals back to the brain, as well as heightening anxiety and creating a vicious cycle. Good digestion ensures a correct breakdown and absorption of nutrients which are critical for energy production. A balanced microbiome supports the extraction of energy from food. Imbalances, whcih are known as dysbiosis, can lead to malabsorption, resulting in chronic fatigue and lethargy. Dysbiosis and intestinal inflammation can lead to “brain fog” and difficulty concentrating. Maintaining a diverse microbiome supports the production of dopamine and norepinephrine, which are essential for motivation, memory, and cognitive control. When the gut is inflamed, it releases molecules called cytokines that can trigger a persistent feelings of fatigue and low energy. The gut lining acts as a critical barrier against pathogens. Healthy gut flora trains immune cells to recognise and fight harmful invaders while preventing overreactions, such as autoimmune responses. Gut microbes produce short-chain fatty acids (SCFAs), which provide fuel for immune cells and help suppress systemic inflammation throughout the body.
During periods of high stress, such as the period we are currently living in, gut health is essential for maintaining cognitive function and focus. Beneficial bacteria produce SCFAs, such as butyrate, which have anti-inflammatory and neuroprotective effects, helping preserve the blood-brain barrier.
The top tips are:
If you would like to know more about your gut health and how to stay healthy, contact us at +971 50 494 6377 to arrange an appointment with Prof. Dr Giovanni Leonetti (gastroenterologist).
Prof. Dr. Giovanni Leonetti is a licensed general surgeon who obtained his medical degree at the University of Rome “La Sapienza”, where he also received his PhD in Advanced Technologies in Surgery. He teaches Gastroenterology at Unicamillus Health University of Rome. During his career, he has refined the most modern and advanced diagnostic and therapeutic upper and lower gastrointestinal endoscopy techniques for treating diseases affecting the digestive system
