Sandra Ortonobes, science communicator: "Cortisol plays a very important role in metabolism."

Sandra Ortonobes , better known as Hyperactin , has focused on one of the hormones most implicated in stress and metabolic health: cortisol . In one of her informative YouTube videos, the biophysician clearly explains the real role of this hormone when the body faces dangerous or threatening situations, and why its function is not limited solely to emotional stress.

During the explanation, Ortonobes points out that " cortisol plays a very important role in metabolism ," as it allows the body to mobilize energy resources when it needs to respond to an intense stimulus. This process, which is activated after the initial release of adrenaline and noradrenaline , is part of a slower response of the hypothalamus-pituitary-adrenal axis and aims to restore internal balance, also known as homeostasis.

How prolonged stress affects the body

The science communicator points out that the problem arises when this mechanism persists chronically . Sustained stress can alter the function of multiple organs, compromise digestion, reduce fertility, and even affect the immune system. "The stress response consumes a lot of energy, which is why non-priority functions like immunity are inhibited at that time," explains Ortonobes. This increases the body's vulnerability to infections or cardiovascular disease. That's why, for example, we often fall ill after a stressful period of exams.

Furthermore, Ortonobes emphasizes that chronic stress also negatively impacts the brain, affecting key areas of memory and learning . Hormonal changes can alter structures such as the hippocampus or prefrontal cortex, resulting in concentration problems, gastric problems, insomnia, or persistent fatigue . In his words: "We get so used to these symptoms that we don't realize there's an underlying problem."

Through clear and accessible language, Sandra Ortonobes emphasizes that understanding the physiological mechanisms of stress is essential to detecting warning signs before they lead to major problems. Her work reinforces the value of scientific dissemination to bring complex knowledge to the general population and promote better management of mental and physical health.