Beyond Diet and Exercise

Metabolism Unmasked: Beyond Diet and Exercise

Mariana Aróstegui reveals the complexity of metabolism and its relationship with the environment

In a world full of myths about metabolism, it is common to hear that weight gain is due to poor diet or lack of exercise. However, Mariana Aróstegui, a biologist specialized in microbiota and metabolic health, challenges this notion with her new book, 'Desincronizados' (Larousse). According to her, reducing metabolism to simply having discipline is not only simplistic, but also deeply unfair.

Aróstegui explains that the metabolism responds to multiple signals that the body receives, and when these signals are altered due to factors such as lack of natural light, constant stress or a compromised microbiota, the body begins to adapt reactively. This process does not imply that the body is failing; On the contrary, it demonstrates its ability to survive in an environment that is not favorable to it.

“It is not that the body does not function, it is that it is functioning in a context that disorganizes it,” the expert emphasizes. This understanding transforms the perspective on fighting weight, leading people to focus on providing their body with what it really needs to regain its balance.

One of the main antagonists of modern metabolism is, according to Aróstegui, our environment. Although diet is an important factor, it is only part of the puzzle. The disordered signals that the body receives daily are the real problem. We live in a continuous cycle of little exposure to natural light, excess screens and artificial lights, incessant stress and chaotic rhythms of life. “All of this tells the body that it is not in a safe or coherent environment,” Aróstegui mentions.

When the body perceives this lack of safety, it prioritizes survival, which leads to a series of adverse reactions: slowing down of metabolism, increased appetite, accumulation of fat and hormonal alterations, all of which can occur regardless of following a healthy diet. Many people are surprised to see that, despite their efforts to live a balanced lifestyle, their situation does not improve. This is because the problem lies not only in diet, but in the surrounding conditions that affect their well-being.

The specialist emphasizes that light has a crucial role in hormonal regulation. It's not just about lighting a space; Light acts as a biological signal that affects our hormones. Exposure to screens and artificial light at night interferes with the production of melatonin, thus disorganizing our circadian rhythm. This imbalance negatively impacts sleep quality, increases cortisol, reduces insulin sensitivity, and distorts hunger and satiety signals. The result is a cycle of inflammation, fatigue and fat accumulation.

The most alarming thing is that all these effects can manifest themselves without the need to modify the diet. If the body is out of sync, it will handle energy differently, meaning it's not just about what we eat, but the hormonal and circadian conditions in which we eat.

Aróstegui's work invites us to reflect on the complexity of human metabolism and its deep interconnection with the environment. Recognizing that wellness goes beyond diet and that context plays a key role opens the way to a more holistic and compassionate approach to addressing issues related to weight and health.

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FAQ

1. What is metabolism?
Metabolism is the set of chemical processes that allow the body to convert food into energy.

2. Why are there myths about metabolism?
There are popular beliefs that simplify metabolism to poor food choices or lack of physical activity, without considering environmental and biological factors.

3. How do environmental signals affect metabolism?
Factors such as light, stress and lifestyle influence how the body processes energy and regulates appetite.

4. What role does light play in metabolism?
Light regulates our hormones, and inadequate exposure can alter essential biological cycles, affecting metabolism.

5. Is changing your diet enough to improve metabolism?
Not necessarily. Changing your environment and circadian conditions is also crucial for a healthy metabolism.

6. What is the microbiota and how does it affect metabolic health?
The microbiota is the set of microorganisms in our intestines, and its balance is vital for metabolic and general health.

7. What does it mean to be out of sync?
Being out of sync implies that the body is not functioning in harmony with natural signals, affecting its metabolic efficiency.

8. Can stress affect my weight?
Yes, chronic stress can trigger hormonal changes that promote fat accumulation and alter appetite.

9. How can I improve my metabolic health?
Promoting a healthy environment, ensuring good lighting, stress management and a balanced diet are key steps.

10. Where can I find more information about metabolic health?
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