The effects of cold on digestion and metabolism
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Introduction
Cold weather is often associated with shivering and an increased need for warmth, but it plays a key role in the functioning of metabolism and digestion . Numerous studies show that exposure to cold activates thermogenesis , stimulates the production of brown fat, and impacts calorie expenditure. But how does this mechanism actually work? And what is its impact on our digestion and weight?
In this article, we'll explore the effects of cold on metabolism and digestion , and how you can take advantage of it to improve your well-being.
1. What is metabolism and how does it work?
1.1 Definition and role of metabolism
Metabolism refers to the set of chemical processes that allow the body to produce energy and maintain its vital functions. It is divided into two main categories:
- Basal metabolism : the amount of energy needed to maintain basic functions (breathing, blood circulation, body temperature).
- Active metabolism : energy expended for physical activity and digestion.
1.2 The influence of temperature on metabolism 🌡
When the body is exposed to cold, it must maintain its internal temperature around 37°C . To do this, it activates a process called thermogenesis , which increases heat production and accelerates the consumption of energy reserves .
This is where the cold comes in as a natural metabolic accelerator , increasing the burning of calories and stimulating certain physiological functions, particularly digestion.
2. Cold and activation of brown fat 🧊
2.1 What is brown fat?
Unlike white fat , which stores energy as reserves, brown fat is designed to burn calories to produce heat. This fat is particularly prevalent in infants and decreases with age.
2.2 How does cold stimulate brown fat?
Exposure to cold activates brown fat cells , prompting them to burn more energy. A study published in the New England Journal of Medicine shows that people regularly exposed to cold temperatures see their brown fat activate and their calorie expenditure increase by 15 to 30% .
🔥 Summary of the benefits of brown fat:
✅ Increases fat burning.
✅ Stimulates basic metabolism.
✅ Improves body temperature regulation.
3. The impact of cold on digestion
3.1 Cold and digestive blood circulation
When it's cold, the body prioritizes blood flow to vital organs (heart, brain) at the expense of the digestive system. This can lead to slower digestion after a large meal, but also better management of nutrient absorption in the long term.
3.2 The appetite suppressant effect of cold
Contrary to popular belief, exposure to cold can reduce appetite by stimulating the secretion of leptin, the satiety hormone. Thus, regular immersion in a cold environment can regulate appetite and limit food cravings.
Fun Fact 💡 : This is one of the reasons why people living in cold climates have a diet higher in fat, but often have lower obesity rates!
4. How to use cold to boost your metabolism?
4.1 Cold water and digestion
Drinking cold water can have a positive impact on digestion , as it stimulates intestinal transit and slightly increases energy expenditure. However, it is advisable to avoid iced water after a large meal, as it can slow down digestion.
4.2 Perineal cryotherapy: an effective ancestral method
Perineal cryotherapy is an ancient method that involves cooling the perineal area to stimulate blood circulation and activate the elimination of toxins. This technique is used to:
✔️ Improve digestion and transit.
✔️ Reduce the feeling of bloating.
✔️ Boost natural metabolism.
5. Cold, weight loss and well-being: what the studies say
5.1 Does cold really burn more calories?
A study published in the Journal of Clinical Investigation shows that exposure to cold can increase energy expenditure by up to 30% , notably through the activation of brown fat.
5.2 Does cold improve the elimination of toxins?
Yes! By stimulating lymphatic circulation, exposure to cold allows the body to eliminate toxins and metabolic waste more quickly, which improves digestive function and a feeling of lightness.
5.3 What are the benefits on stress and well-being?
Cold stimulates the production of endorphins , the happy hormones, which contributes to a reduction in stress and better emotional management .
6. Should we fear the negative effects of cold on digestion?
❌ Slowed digestibility after a large meal, this is why it is necessary to avoid practicing perineal cryotherapy during digestion (favor a practice before or 2/3 hours after eating).
Conclusion: cold, a natural ally for digestion and metabolism
Far from being a simple winter annoyance, the cold is actually a powerful ally for boosting digestion and stimulating metabolism. By activating brown fat, regulating appetite, and improving blood circulation, it offers numerous benefits for health and well-being.
So, why not incorporate natural practices like cryotherapy, cold water or derivative baths? in your daily routine? 😉❄️
📌 FAQ – Answers to frequently asked questions
Does cold really make you lose weight?
Yes, because it stimulates thermogenesis and activates brown fat , which promotes fat burning.
How to integrate cold into your daily life?
Try cold showers , perineal cryotherapy (to be practiced outside of digestion times).
