Scientists have warned of a significant contributing factor to dementia, particularly Alzheimer’s disease. In the UK, almost one million individuals are currently battling dementia, with one in every 11 people over 65 affected, according to NHS figures. This decline in cognitive abilities impacts not just memory but speech, thought processes, and emotions, turning lives upside down.
Australian researchers have been exploring the driving causes behind this devastating condition and how its effects may be lessened. The results were unveiled just this week, highlighting that untreated high blood pressure is associated with Alzheimer’s disease. Dr. Matthew J. Lennon from the University of New South Wales in Australia stated, “High blood pressure is a leading cause of stroke and cerebrovascular disease, and yet it can be controlled with medication, reducing a person’s risk of these diseases.”
A recent Neurology study examined more than 30,000 people across 14 nations, with an average age of 72, over a four-year period. Of those studied, 1,415 individuals developed Alzheimer’s disease during that time. The study revealed that people were 36% more likely to have Alzheimer’s disease if they had untreated high blood pressure. Furthermore, unmedicated hypertension was linked to a 42% increased risk of Alzheimer’s compared to those taking blood pressure medication.
This research comes shortly after the University of Oxford found that type two diabetes, worsened by obesity, may also accelerate the onset of dementia. Other contributing factors include smoking, excessive alcohol consumption, and poor sleep habits. Dr. Lennon emphasized the importance of treating high blood pressure as individuals age to reduce their risk of Alzheimer’s disease.
High blood pressure is influenced by various factors such as age, ethnicity, and diet, with a high salt intake exacerbating the condition. Despite often being symptomless, signs to watch out for include headaches, blurred vision, and chest pain. Regular blood pressure checks are crucial for an accurate diagnosis of this issue. If concerned, seeking advice from a GP or calling 111 is recommended.
Understanding the correlation between high blood pressure and Alzheimer’s disease is vital in tackling the widespread impact of dementia in society. By addressing controllable risk factors such as hypertension, individuals can potentially reduce their likelihood of developing Alzheimer’s and mitigate its devastating effects on cognitive function.