Sometimes the problem is neither in the diet nor in the lack of physical activity. Many people notice gradual weight gain despite lifestyle habits that they consider balanced. Behind this phenomenon sometimes lies a less visible factor: chronic stress. In a video published on Instagram, pharmacy doctor Léa Pateras-Pescara discusses the role of cortisol, often nicknamed the stress hormone. She points out that this hormone is useful when it is produced occasionally, but that it can become problematic when its level remains high for long periods. As she explains: “When you are stressed, your body secretes a hormone, cortisol. The problem is chronic stress. When the alarm gets stuck on“.
Why cortisol promotes weight gain in the stomach
When stress takes hold, cortisol continues to be produced in significant quantities. This situation can disrupt several mechanisms essential to the proper functioning of the metabolism.
According to Léa Pateras-Pescara, an excess of cortisol promotes insulin resistance in particular. The body then uses glucose less efficiently and tends to store energy in the form of fat rather than burning it.
The location of this weight gain is not trivial. The expert emphasizes that “the abdominal region has a high density of cortisol receptors, which explains why stress-related weight gain is often localized in the stomach“.
This accumulation of abdominal fat can appear even in people who maintain a relatively balanced diet and who practice regular physical activity.
Chronic stress, cravings and hunger hormones
Cortisol does not only act on fat storage. It also influences eating behavior through several hormonal mechanisms.
A high level of cortisol stimulates the production of ghrelin, the hunger hormone. This biological reaction can increase the desire to consume foods high in sugar or fat.
These desires are therefore not just a matter of lack of will. They correspond to a physiological response of the body to a situation of prolonged stress. This combination of increased appetite and easier fat storage creates favorable conditions for weight gain.
Recommended habits to limit the impact of stress on weight
To reduce the effects of chronic stress on the body, Léa Pateras-Pescara recommends several daily adjustments.
She advises in particular to integrate proteins into each meal, to favor fiber as well as complex carbohydrates and to limit simple carbohydrates which can accentuate hormonal variations.
Sleep also plays a central role. Getting enough rest helps to better regulate cortisol and support overall hormonal balance.
Physical activity remains a valuable ally, particularly muscle strengthening exercises which help maintain muscle mass and metabolism. Cardiac coherence is also one of the methods recognized to help reduce daily stress.
Finally, certain food supplements such as magnesium bisglycinate or rhodiola can be considered with the support of a health professional to ensure that they meet individual needs.