- Study of Brits finds high blood pressure in 30s and 40s increases risk of dementia
- The earlier in life you had high blood pressure, the higher your risk of dementia
- Drs also found that people with blood pressure problems had shrunken brains
One study claims that people with high blood pressure in their 30s and 40s have a higher risk of dementia later in life — and a smaller brain.
Research on more than 250,000 Britons found that people with high blood pressure between 35–44 had a 61 percent higher risk of developing a memory-robbing disorder later in life.
Doctors said their findings highlight the potential benefit of helping young people control their blood pressure in reducing their dementia risk.
An international team of researchers, including academics from Australia and China, examined health records collected over more than a decade.
The findings are the latest in several studies linking high blood pressure in midlife to dementia in old age.
Vascular dementia, the second most common form, is caused by decreased blood flow to the brain, which starves cells of oxygen and vital nutrients.
High blood pressure is believed to constrict vital arteries and accelerate this process.
The findings should be of concern to the estimated millions of adults under the age of 65 living with high blood pressure in the UK.
In 2019 the British Heart Foundation estimated that 4 million Britons in this age group were not diagnosed with high blood pressure, with 1.3 million under the age of 45.
Researchers found that people who were diagnosed with high blood pressure in their 30s and 40s had a higher risk of developing dementia later in life
High blood pressure is known as the ‘silent killer’ and it poses life-threatening health risks such as heart attack and stroke.
Factors such as obesity, eating too much salt, smoking and drinking alcohol, lack of sleep, being of Black African or Black Caribbean descent are believed to increase your risk of developing the condition.
Study warns that a high-salt diet can disrupt your body’s clock and lead to early death
A high-salt diet may disrupt sleep patterns and long-term health, suggests a US study on rats.
High-salt diets can raise people’s blood pressure, which in turn can increase your risk of heart disease and stroke.
Now new research from University of Alabama scientists suggests it may also disturb the body’s natural 24-hour cycle, called the circadian rhythm.
UJS researchers found that a high-salt diet disrupts internal body clocks in rats, and their findings may have implications for people.
Researchers claim that disruption of the body’s circadian rhythms has various negative health effects on people, including an increased risk of mood disorders, cancer and even early death.
The scientists fed rats a high-salt diet and then measured their movement and brain activity throughout the day.
They found that the rats on the high-salt diet had more or less activity, but they didn’t follow the same sleep patterns as the normal rats.
Researchers found that rats fed high salt had increased brain activity at night compared to the control group that disrupted their internal body clocks.
Neuronal excitability at night can cause sleep-wake, hormonal and physiological rhythms to be impaired or misplaced, the researchers wrote.
An estimated 90% of the US population over the age of 2 has too much salt in the diet, the researchers said.
The NHS advises that adults should eat no more than 6 grams of salt (2.4 grams sodium) a day – that’s about 1 teaspoon.
A UK government report published in 2020 found that 69% of adults in England exceed the daily recommended amount of salt.
The researchers presented their findings today at the Seventeenth International Conference on Endothelin (ET-17).
Researchers compared health data from 124,053 British adults with high blood pressure and 124,053 British adults without the condition.
Medics followed the patients’ medical histories for 14 years and found that 4,626 had developed some form of dementia.
They found that people with high blood pressure between 35-44 were 61 percent more likely to develop dementia a decade later than those without high blood pressure.
The risk of vascular dementia, a type of dementia caused by impaired blood flow to parts of the brain, was 69 percent. People between 35-44 are more likely to suffer from high blood pressure than people without the condition.
People who were diagnosed with high blood pressure between the ages of 45-54 had a lower, but still significant, 45 percent higher risk of vascular dementia than their healthy counterparts.
doctor too Brain MRI scans of 11,399 Britons with high blood pressure were compared with scans of 11,399 Britons without hypertension.
These people were between 35-44 and 45-54 years old at the time of the scan.
Medics found that people who were diagnosed with high blood pressure had a lower total brain volume than people with high blood pressure.
This shrinking of brain volume was worst in those who were diagnosed with high blood pressure before the age of 35.
The study’s authors believe that high blood pressure may cause the brain to shrink in volume and that this change in structure is associated with dementia.
However he added the need for more research to be conducted to measure this tendency in individuals over time rather than with a single scan.
Dr Jianwen Shang, from Guangdong Provincial People’s Hospital in Guangzhou, China, said: ‘The results of our study provide evidence that a younger age of onset of hypertension is associated with the incidence of dementia and, more importantly, this association. is supported by structural changes in brain volume,’ he said.
He said that by helping people deal with their high blood pressure early in life, they can avoid a devastating dementia diagnosis in later life.
‘The findings raise the possibility that …