How your food directly affects your brain

There is a two way communication system between the gut and brain, this is one way that gut microbiota mediate our health.

gut bacteria
bacteria – crucial to your health

The growing excitement over the role of gut bacteria is being fuelled, in part, by the realisation of the potential role of the gut – brain axis. The gut-brain axis is the hard wiring between the digestive tract and the brain. That is to say a direct communication link passing information between neural, hormonal and immune systems. A key point to make is that the communication is bi-directional, that means the brain talks to the gut and that the gut talks to the brain. Thus the microbiota (gut bacteria) and metaboloites (small molecules that are the product of metabolism) may be in reciprocal communication with different parts of the brain. While this has a direct and obvious impact on processes related to eating and digesting, there is rising evidence that our gut flora may be significant factors in physical and mental health.

The relationship between emotions and¬† the digestive system is one of which we are intuitively aware. For example, feelings of love often manifest as ‘butterflies’ in the stomach. Engaging in team sports enables you to observe pre-match nerves in both yourself and others; the digestive system often plays an obvious role in how some people deal with tension! There is evidence that stress is a mediating component in gut microbiota, perhaps through increasing or decreasing the optimal conditions for certain types of bacteria to flourish.

New studies are suggesting that individual microbiota may be influential in functions as apparently disparate as memory and fear. It is not known what the basis of the relationship is, where the causality can be found. But that there is a correlation between what is in our gut and how we experience life in terms of mental and physical well being. The take home point is that many of the things we eat and drink are able to positively and negatively influence our health. By taking more interest in what goes into your stomach you might do yourself a power of good.

Gut bacteria and your health

Outstanding lecture from Prof Simon Carding, how gut bacteria mediates both physical and mental health


Emerging research is demonstrating a profound relationship between the bacteria in our gut and how well we are, our lived experience. In this outstanding lecture  Prof. Simon Carding offers insights, new and old into ideas about our gut bacteria. Warning you may see the world a little differently after watching the video!

“A potential life changer and life saver”

Gut bacteria and mind control by Prof. Simon Carding.