A traumatic brain injury from a car crash can have effects on a person’s cognitive function long after the initial injury has healed. One of the significant concerns associated with TBIs is the increased risk of developing dementia or Alzheimer’s disease later in life.
Because there is often a delay of many years between the injury and the onset of dementia, claiming a causal relationship between the condition and a car crash can be difficult.
Links between TBI and dementia
Studies have shown a clear link between TBI and the development of dementia. The risk appears to be higher in individuals who have experienced moderate to severe TBIs. However, even mild TBIs can increase the risk, especially if they occur repeatedly.
Mechanisms behind the increased risk
Doctors do not understand the exact mechanisms behind the increased risk. They believe a TBI can lead to the accumulation of tau and beta-amyloid proteins that cause Alzheimer’s disease. Additionally, the injury may disrupt normal brain function and increase inflammation, both of which may contribute to the development of dementia.
Challenges in proving causation
While it is possible to blame the driver who caused the crash for an increased risk of developing dementia or Alzheimer’s disease, proving causation in these cases can be challenging. Other factors, such as genetics, lifestyle and other health conditions, can also play a role.
In Tennessee, the statute of limitations for filing a personal injury claim is one year from the date of the incident. For this reason, it is important not to wait for symptoms of dementia to occur before seeking compensation for brain injuries from car accidents.
