The intricate link between gut bacteria, sleep, and emotions
The intricate link between gut bacteria, sleep, and emotions
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Do you ever wonder why a good night's sleep can make you feel on top of the world, while a restless one can leave you cranky and blue? Well, it turns out that there's a fascinating hidden player in this emotional rollercoaster: your gut!


That's right, the belly we've been feeding all these years may have a lot to say about our moods and the quality of our shut-eye. In this article, we're diving into the connection between gut bacteria, the sleep we catch at night, and our feelings during the day.


The role of gut bacteria in sleep regulation1

You may find it interesting that the trillions of microorganisms residing in your gastrointestinal tract, commonly referred to as gut bacteria or microbiome, exert a significant effect on your sleep patterns.


These microorganisms not only assist in breaking down the foods we consume but also release specific chemicals that can impact our sleep quality. As we grow older, alterations in our gut microbiota composition can occasionally disrupt our sleep .


Think of your gut as a carefully tended garden, with these bacteria serving as the diligent gardeners. They nurture the soil, and when everything is in harmony, you enjoy a restful night's sleep. However, when this balance is disturbed, it's similar to having unwanted weeds in your garden, leading to sleep disturbances.


How gut bacteria affect mood and emotions2,3

Now, you might be wondering how these gut bacteria can impact your mood and emotions. Well, it all comes down to the chemicals they produce. Some of these chemicals can make you feel happier and more relaxed,while others might lead to stress and anxiety.


As we age, the balance of these chemicals can shift, which is why it's crucial to take care of our gut health. Think of it like a recipe for feeling good: when the right ingredients (the good gut bacteria) are in the mix, you're more likely to feel cheerful and happy. But when things go wrong, it's like adding too much salt to your favourite dish – it can throw off the whole flavour.


How you can improve gut health for better sleep and emotions

So, how can you take charge of your gut health to improve your sleep and emotions, especially as we get older? It's easier than you might think! One key step is to focus on your diet. Try to eat more foods that are friendly to your gut, like fibre-rich fruits and vegetables .


These act like fertiliser for your gut bacteria, helping them thrive and create those mood-boosting chemicals. It's also a good idea to cut back on sugary snacks and processed foods, which can be like junk food for your gut, causing them to act up and disrupt your sleep and mood.


Remember, a balanced diet is like the foundation of a sturdy house – it supports your overall well-being, from a good night's sleep to a happier mood.


Probiotics and their potential benefits for sleep and mood

By now, you may have heard about probiotics, they are like the superheroes of the gut world. These are friendly bacteria that you can find in certain foods and supplements.


They're like reinforcements for your gut army, helping to maintain a healthy balance of bacteria down there. Some studies suggest that taking probiotics might even have a positive impact on your sleep and mood. It's a bit like inviting expert gardeners to tend to your gut garden and keep it flourishing.


While more research is needed, adding probiotics to your daily routine could be a step toward better sleep and a brighter outlook on life, especially as we age.


Just be sure to consult with your healthcare provider before starting any new supplements to ensure they're right for you.


References

  1. More Than a Gut Feeling: How Your Microbiome Affects Your Mood. Stanford Lifestyle Medicine. Available at: https://longevity.stanford.edu/lifestyle/2024/04/08/more-than-a-gut-feeling-how-your-microbiome-affects-your-mood/.
  2. Smith RP, Easson C, Lyle SM, et al. Gut microbiome diversity is associated with sleep physiology in humans. PLoS One. 2019;14(10):e0222394. Published 2019 Oct 7.
  3. Appleton J. The Gut-Brain Axis: Influence of Microbiota on Mood and Mental Health. Integr Med (Encinitas). 2018;17(4):28-32.

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