It seems to be common sense that our happiness affects our health, and consequently our digestion. And language has many examples of relating mental and emotional states with our alimentary tract. A shock can hit us in the guts, considered thinking is chewing things over or ruminating, we have gut feelings, and Australians say that things or people give them the shits. But while mainstream doctors may see this, conventional medicine’s empirical paradigm doesn’t allow the recognition of phemomena that it can’t explain, so there was often a tendency to label illnesses without clear somatic causes as neurotic. (1)
With new understanding of how gut flora can affect both our digestion and mood, and that conversely poor mental/emotional states such as depression can change the composition of our gut flora and impact our digestion (2), there is starting to be a way that conventional medicine can allow discussion of the link between how we feel and how well we digest things. There are even starting to be scientific papers with titles like ‘Gut Feelings’.
Chinese medicine has always been able to recognise this connection because its model is not entirely materialistic. Each physiological system is associated with an aspect of the psyche, and with an emotion that interferes with the proper functioning of that physiological system. So the system that transforms our food into nutrients is affected by worry, and the system that tries to stop us from getting uptight about life’s stresses gets stuffed up by anger and frustration. Just like the links between emotions and physiological function through gut flora, it works both ways, so poor digestion can bring more worry, and failure to relax can lead to more anger and frustration. To make things worse, these two physiological systems are linked, so weak digestion can make us less able to relax, and internalising stress too much, getting angry and frustrated, affects our digestion.
There are some traditional combinations of medicinals that illustrate how Chinese Medicine has always seen the link between our happiness and our digestion.
Tong xie yao fang 痛瀉要方 (Important Formula for Painful Diarrhoea) was designed in 1481. It specifically addresses abdominal pain and rumbling, with urgent diarrhoea that can relieve the pain. This is a manifestation of weak digestion that has been disrupted by pent-up emotions. Not surprisingly it is the basis of many prescriptions for IBS with pre-dominant diarrhoea and it has been found that it could be superior to routine pharmacological treatment for this condition.iii
Conversely, anger, resentment, frustration, pent-up emotions, and not letting things go may manifest physically as impeded elimination. Liu mo yin 六磨湯 is a combination of medicinals that addresses constipation that results from us letting our emotions block us up quite literally. It uses herbs that gently move things through the digestive tract, but which also assist flow generally, in the sense that they relieve the general mental and physiological stagnation that is both the result of us not properly dealing with stress, and a contributing factor to our inability to do so.
More immediately the way we eat can help us digest better. We should be happy and relaxed, ideally with good company, and the Chinese even think it best to talk about how delicious the food is. Save the horror movies, the news and current affairs, political discussion and family arguments for after dinner.
Though for some years a link was made between personality type and cardiovascular disease, without there being a convincing explanation of how they could be linked. Of course this link was disputed by many.
The low FODMAP diet relieves the symptoms of IBS, but for long term health the diet should only be temporary.
Most IBS sufferers would have heard of the low FODMAP diet. Many would have tried it. Limiting the consumption of difficult to digest carbohydrates helps many people relieve the symptoms of IBS and allow their intestines to heal. But while the low FODMAP diet was always intended to be a temporary measure to allow the gut to recover, many people understandably avoid the difficult process of reintroducing FODMAP foods into their diet. They should. The most important field in gastrointestinal research these days is the investigation of the microbiota or gut flora. It now seems that the poorly digestible carbohydrates that the low FODMAP diet proscribes are important for maintaining healthy gut flora, which can prevent or relieve an incredible range of illnesses from depression and obesity to arthritis. “Prebiotics” is b ecoming a buzz word, and it refers to a group of foods that largely overlaps with what is not allowed by a low FODMAP diet: onion, garlic, pulses, beans, dried fruit.
So if you’re someone who has become comfortable with a low FODMAP diet because it has got rid of the trials of having IBS, it’s time to start introducing the foods you’ve been avoiding. This should be done one food at a time, in small quantities at first, to see if it causes a recurrence of IBS symptoms. This may be best done under the supervision of a qualified nutritionist.
What has this got to do with Chinese medicine? Only that our overall outlook is that no food is essentially bad. Some foods are inappropriate for some people, some are in appropriate for people with a certain condition. But generally we try to make people healthy enough to eat a wide range of foods without unnecessary long-term restrictive diets.
A typical contemporary research article may be found here: Journal Expert Review of Gastroenterology & Hepatology Volume 8, 2014 – Issue 7