abigail-dantes has posted!
I like to relate old age and its commonly associated diseases to an old car. Those with old cars can quite relate. The normal wears and tears of youthful life translate into varieties of diseases at old age. Some of these wears and tears turns on/off certain genes within the human genomes and hence, varieties of diseases.
Having said all that, I would have loved to see statistics on the prevalence of the diseases you wrote about, especially here in Africa where I do not think the wears and tears of life result in these kinds of diseases in several cases. Eye problems, arthritis are the two major problems around here as far as old age is concerned. I stand to be corrected.
This is incredibly well put Shaid :)
It is interesting you say in Nigeria the prevalence of dementia is low. I came across an Alzheimer's disease international consensus by WHO, and Africa was among the lowest rates. However, it is speculated that it might be due to different assessment criteria, which often depends upon cultural aspects and diagnostic practices.
All the best my dear :)
thanks :)