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Big Head- Less Dementia!

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While a big head may not always look attractive, there are some long-term benefits. The latest research from Germany indicates that people who have big heads may be protected against the depredation of dementia. In this study done in Munich, researchers followed people with big heads for many years. The patients had their head size measured, were given memory and cognitive skill tests followed by a brain scan to estimate the level of their disease. Over time, researchers discovered that individuals with Alzheimer's-related dementia with the biggest heads had overall better cognition, memory and thinking skills compared to individuals with smaller skulls. A larger head was associated with better performance in the tests, even when individuals had similar amounts of Alzheimer's-related brain cell loss.

The Munich researchers speculated that having a large brain means that there is more brain reserves, which buffers against dementia-related brain cell death. The study looked at over 270 patients recruited from registries across Europe and North America. The researchers observed that for every 1 percent in brain cell death, an extra centimeter of skull size was associated with a greater than 6 percent score on the cognitive and memory tests.

So what does all this mean?

It is not as if someone can increase brain size overnight because this is genetically determined. However, these researchers say that the first few years of life are critical for brain growth and by age 6, the brain will have reached almost 94 percent of its absolute size.

"Improving prenatal and early life conditions could significantly increase brain reserve, which could have an impact on the risk of developing Alzheimer's disease or the severity of symptoms of the disease," lead researcher Dr. Robert Perneczky said.

Dr. Simon Ridley, head of research for the Alzheimer's Research Trust said, "Alzheimer's is a very complex disease, so we should be careful not to focus too much on a single risk factor, particularly as there is little we can do about the size of our heads.”

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.

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