Dementia: The Bittersweet Moments of Terminal Lucidity

Dementia is often described as "the long goodbye". 

Although the person is still alive, dementia slowly and irreversibly chips away at their memories and the qualities that make someone "them". It's a heartbreaking journey for both the person with dementia and their loved ones. As dementia progresses, it takes away the person's ability to communicate, eat and drink on their own, understand where they are, and recognize family members. It's a cruel disease that robs people of their identity and independence. 

Since as early as the 19th century, stories from loved ones, caregivers, and healthcare workers have described some people with dementia suddenly becoming lucid. They have described the person engaging in meaningful conversation, sharing memories that were assumed to have been lost, making jokes, and even requesting meals. These moments of lucidity are often referred to as "terminal lucidity" because they typically occur near the end of life. It's estimated that 43% of people who experience this brief lucidity die within 24 hours, and 84% within a week. 

But why does terminal lucidity happen? 

Scientists have struggled to explain this phenomenon. Some episodes of lucidity have been reported to occur in the presence of loved ones, while others have reported that music can sometimes improve lucidity. But many episodes of lucidity do not have a distinct trigger. 

A research team from New York University speculated that changes in brain activity before death may cause terminal lucidity. But this doesn't fully explain why people suddenly recover abilities that were assumed to have been lost. Paradoxical and terminal lucidity are also very difficult to study. 

Not everyone with advanced dementia will experience episodes of lucidity before death, and lucid episodes are unpredictable and typically occur without a particular trigger. Moreover, it would be unethical for scientists to use the time of terminal lucidity to conduct research, as it's a joyous time for those who witness the episode. 

Explanations for terminal lucidity extend beyond science. 

These moments of mental clarity may be a way for the dying person to say final goodbyes, gain closure before death, and reconnect with family and friends. Some believe episodes of terminal lucidity are representative of the person connecting with an afterlife. These moments of clarity are a bittersweet reminder of the resilience of the human spirit. They offer a glimmer of hope in the face of a devastating disease and provide comfort to those who witness these precious moments.

Source: Channel News Asia