Did you know that your gut is practically your second brain? Yes, indeed the enteric nervous system is often referred to as our second brain and it houses a complete ecosystem of microbiome [a diverse range of bacteria, yeast, parasites, and other single-celled organisms that live in and on our bodies] which is unique to us as our fingerprint. The gut also lined with a vast neural network comprises some 100 million neurons. To put this into perspective, our gut has more neurons than our spinal cord and it gives more information to our brain than it receives. So, our gut is not only the main portal to our external environment, but also runs the complex procedures such as processing food, absorbing nutrients, dealing with infectious agents and toxic substances and finely tuning our immune system pretty much by itself. Ok, our gut is not our thinking brain, it does not help us to pass an exam or to multi-task, but there is a growing evidence to suggests that our gut strongly influences how we feel. I am not simply referring to times that when we feel bloated and uncomfortable, and therefore not in the mood; the gut–brain axis -the biochemical signalling that takes place between the gut and the central nervous system (CNS)- is so sophisticated, changes in the composition of the gut flora causes changes in levels of circulating cytokines, some of which can affect brain function. Cytokines act through receptors, and are especially important in the immune system. Considering the fact there are at least 80 types of autoimmune diseases such as Rheumatoid Arthritis (RA), Inflammatory Bowel Disease (IBD), and Systemic Lupus Erythematosus [SLE], which are commonly chronic, debilitating and sometimes disabling, it is about time that we start to pay attention to what our guts are telling us.
Because our gut is so sophisticated and interconnected with our entire body, multitude of factors can affect its balance. If our lifestyle choices lead to stress and anxiety, poor dietary habits, illness and sedentary behaviour, which we often try to fix with taking cocktail of drugs, these can lead to abdominal pain, bloating, nausea and vomiting, indigestion, constipation, diarrhoea and flatulence (wind). Moreover, we know that the gut produces more than 90% of the body's serotonin, a hormone that helps regulate our mood or emotions. If the gut is not functioning well, regulation of such vital hormones are also affected. To cut the long story short, if our gut is not happy, it is unlikely that we can be happy and contented.
CHRONIC PAIN AND FATIGUE
As an arthritis sufferer, health professional and a rheumatology researcher I have always been fascinated by the role our gut plays in the symptoms of arthritis, such as pain, fatigue, low mood and unrefreshed sleep. As I specialised in self-management and patient education, I made a point of talking about healthy eating and what that is look like to my patients and students. Nevertheless, like the majority of my patients, over the years I have started to carry on extra weight around my abdomen (which suggests visceral fat, stored around a number of important internal organs such as the liver, pancreas and intestines) that did not help my pain and fatigue levels.Of course, I tried to look after my diet and eat clean; I stopped eating red meat 20 years ago, and ate chicken and fish in moderation, so my diet mostly consisted of green leafy vegetables, whole grains and fruit. But more often than not I had given in to sandwiches and cakes laid around in work meetings and conferences and nibbled on late-night snacks of peanut butter sandwiches and crisps. I had that ‘second wind’ in the evenings [no wonder] where I could work until the early hours of the morning, and then go to work in the morning wondering why I have chronic widespread pain and fatigue. It’s not that I did not know that my lifestyle was aggravating my condition, I did. But like everybody else I was the victim of my own habits and comfort zone - made excuses for myself such as ‘I am a night owl, I am just more productive at night’ or ‘I will sleep when I die’ and for late night snacks I simply convinced myself that staying up late meant I needed sustenance! I knew I needed to exercise more, but I neither like the gym nor I had the time for it, hence the only real exercise I did was walking my dogs, which I frequently found more exhausting than it should, having spent all my energy on working and not sleeping. The trouble is I love my work, so I never really give it a second thought that I should work less.
At around six weeks ago, I watched a documentary on Fasting whilst travelling back from London on the train. I knew about fasting already and have briefly tried the 5:2 intermittent fasting previously, failing miserably as I couldn’t cope with going without food all day. As I knew the science behind fasting, the associated health and longevity benefits, I wanted to watch this documentary out of interest. Those who knows me well will know that I am obsessed with non-fiction books, audiobooks and documentaries, so it was just something to do whilst travelling on the train to avoid motion sickness. The documentary explored 7 different methods by the world's leaders of fasting. I really enjoyed the film and was particularly fascinated with the 16:8 intermittent fasting method which seemed easy to do yet very effective. This type of intermittent fasting involves limiting consumption of foods and calorie-laid beverages to a set window of 8 hours per day and abstaining from food for the remaining 16 hours. This cycle can be repeated as frequently as you like, from just once or twice per week to every day, depending on your personal preference. In addition to weight loss, 16:8 intermittent fasting is also believed to improve blood sugar control, boost brain function and enhance longevity. It is said to cause insulin levels to drop, which improves insulin sensitivity, optimises blood sugar levels and burns fat. Plus, short-term fasting has been shown to induce an important cellular repair process that helps remove waste and toxins to keep your body healthy. Many people prefer to eat between noon and 8 pm, as this means you’ll only need to fast overnight and skip breakfast but can still eat a balanced lunch and dinner, along with a few snacks throughout the day. Skipping breakfast was not an issue for me, as I hardly ever had any [probably something to do with late night snacking]. However, you can experiment and pick the time frame that best fits your lifestyle. It is also suggested that, to maximise the potential health benefits of your intermittent fasting, it’s important to involve nutritious whole foods in your diet.
MY EXPERIENCE OF INTERMITTENT FASTING
I decided to have a go at this, purely due to its simplicity with a hope to stop my late-night feasts. I bought a NutriBullet to make delicious smoothies to increase the nutrition value of my food intake and started to take pack lunch to work, so I was not tempted by the fast food options.
Last weekend we went to the movies as a family and I had my usual nachos loaded with cheese and lots of jalapeños. This was followed by a visit to the TGI Fridays (kids’ favourite) and having been eating clean for weeks I thought I will treat myself to fried fatty food, despite not being hungry at all. I ordered a starter portion, but still was unable to eat it all. It was not long after I knew that this was a big mistake, as my second brain (the gut) did not concur with my thinking. I had the worse indigestion and back pain all night and was unable to sleep first time in weeks until after midnight. It just brought home to me, how quickly my gut got used to the good life and rejected the ‘bad food’ and how punishing it was to go against it! I don’t think I will be making that mistake anytime soon. I think finally I learnt to listen to my gut. Maybe it was trying to talk to me for years and I have learnt to ignore the signs. But I now hear it loud and clearly. So, I wanted to share my experience with everyone, and especially with those who suffers from chronic pain and fatigue. What is your gut telling you? If you can’t hear its voice, or if it is crying out with the symptoms of irritable bowel syndrome, and keeping you up at night, maybe you could consider intermittent fasting to see if it will make a difference to your symptoms? Please note, if you have a health condition and/or you are on medication, I strongly advise that you should consult with your GP prior to starting this regime to ensure that you can safely undertake it.
You can find more information on intermittent fasting here.