Head
injury, particularly more severe injury (such as that
causing unconsciousness) has been shown to be a risk factor
for the development of Alzheimer’s disease.
In a USA study of veterans, moderate to severe head injury
during WWII increased the risk of developing Alzheimer’s
disease and dementia in general. For those with severe head
injury the risk was 4.5 times greater than for those without
head injury.
There are several mechanisms by which head injury may
contribute to the development of dementia. One of these is
the increased activity of secretase following head injury,
which may result in amyloid deposits that in turn may affect
the brain.
Protect your head:
wear seat belts in cars
use protective headgear when cycling or roller blading
take care as a pedestrian.
- Source: extract from Mind Your Mind,
Alzheimer's Australia
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Head
injury, particularly more severe injury (such as that
causing unconsciousness) has been shown to be a risk factor
for the development of Alzheimer’s disease. 
Fast track weight loss with 
