The biological signs that reveal how the body naturally prepares for death
The widespread fear that the end of life is a painful process contrasts with clinical evidence regarding the body's biological mechanisms. Observation in palliative care makes it possible to identify a series of physical and cognitive signs that facilitate a comfortable transition. Understanding these manifestations is key to demystifying the taboos and stigmas that persist around death.
Common perceptions about the end of life are often dominated by apprehension over pain or physical discomfort. However, practice in end-of-life care demonstrates a different reality: the human body is biologically programmed to facilitate the dying process and ensure the transition occurs as comfortably as possible.
Palliative care nurse Julie McFadden has analyzed this perspective with the goal of transforming society's understanding of the terminal stage. Based on her direct experience with patients in the final phase of their lives, McFadden argues that observing the body's functioning in detail during this period not only challenges cultural prejudices, but also drastically changes the experience for healthcare personnel and families. In her own case, witnessing the effectiveness of these biological mechanisms left her astonished and allowed her to lose her fear of death.
To anticipate and understand this process, McFadden has identified a series of 11 signs and symptoms indicating that a person is near the end of life. Far from being chaotic anomalies, these manifestations stem from the natural slowing down of vital functions and are divided into metabolic, physical, and neurological changes.
Among the first physiological adaptations, the progressive decrease in food and water intake stands out—a phenomenon associated with the body's reduced demand for energy. In parallel, the person experiences a reduction in functional mobility and a significant increase in sleep, reflecting the gradual winding down of bodily activity.
As the process advances, signs become visible in the patient's external appearance and systemic regulation. Changes in breathing, variations in skin color, and episodes of fever are observed. Likewise, the gaze often changes, presenting glassy or watery eyes.
On a cognitive and behavioral level, the transition toward death includes fluctuations in mental state. Intermittent confusion or disorientation is common, as well as states of agitation. Added to this are specific sensory behaviors: patients frequently reach out their hands as if trying to touch things, stare off into the distance, or claim to see and speak with deceased relatives.
Despite the anxiety these manifestations may cause loved ones, McFadden emphasizes that all of these signs are normal within the dying process. The nurse further clarifies that there is no single pattern: the appearance, combination, and intensity of these symptoms vary in each individual, reflecting each person's biological uniqueness.
Recognizing these signs allows for a reinterpretation of the final stage of life. By understanding that physical decline stems from a biological program designed to ease the outcome, it is possible to reduce the anxiety of loved ones and approach palliative care with a perspective free from taboos.
