Health news: Maintaining
good hearing, exercise, education and social activity were listed among the
ways to prevent memory loss, study finds.
Researchers have found that one third of dementia cases
could be prevented with some basic lifestyle changes and better education
during childhood.
According to the study published in The Lancet on Thursday,
July 20, 2017, the nine factors which damage the brain include hearing loss,
obesity and smoking.
Almost 50 million people around the world suffer from
dementia and Alzheimer's, and this figure could balloon to 132 million by 2050,
according to the latest estimates.
Nine Surefire Ways To
Reduce Dementia
1. Maintain good hearing2. Complete secondary education
3. Stop smoking
4. Reduce depression5. Exercise
6. Social activity
7. Treat high blood pressure
8. Healthy weight9. Treat Type 2 diabetes
Dementia, which is caused by physical changes in the brain,
leads to memory loss and hampers other mental abilities.
"Our results suggest that around 35 percent of dementia
is attributable to a combination of the following nine risk factors: education
to a maximum of age 11-12 years, mid-life hypertension, mid-life obesity,
hearing loss, late-life depression, diabetes, physical inactivity, smoking, and
social isolation," the study said.
Researchers established that if people stayed in school
until the age of 15, the benefits of education and socialisation would help
reduce the cases of dementia by eight percent.
"Although dementia is diagnosed in later life, the
brain changes usually begin to develop years before," said lead author
Professor Gill Livingston, from University College London.
"Acting now will vastly improve life for people with
dementia and their families and, in doing so, will transform the future of
society."
The researchers said maintaining good hearing between the
ages of 45 and 65 reduces the number of cases by nine percent.
Quitting smoking could reduce the number of cases by five
percent, it said.
Other factors contributing to the risk include depression
(four percent), physical inactivity (three percent), social isolation (two
percent), high blood pressure (two percent), obesity (one percent) and type 2
diabetes (one percent).
The study said the global cost of dementia in 2015 was
estimated to be $818bn, and that this figure would continue to rise.
It said nearly 85 percent of these costs were "related
to family and social, rather than medical, care".
The researchers noted, however, that the study was limited.
"We have not incorporated other potential risk factors,
such as diet, alcohol, living near major roads, or sleep, which could be
relevant," it said. "Therefore, the potentially preventable fraction
of dementia might be underestimated in our figures."
Credit: Al
Jazeera/New Agencies
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