Re Heredity issues PS slightly OT

[Guest guest]

Just another thought Judy and group,

Something that has always fascinated me has been to learn that certain 'modern'

diseases may occur in some people more than others precisely because they have a

genetic makeup that gave their distant ancestors survival advantage in the

distant past. One good example is the sickle cell carrier blood trait which

appeared to give advantage in malarial zones,their red cells weren't so

accommodating to the parasite to grow in.

The tendency to obesity/type 2 diabetes also may represent preferential survival

of people handing on a genetic make-up giving advantage in distant times of

famine/ hardship.. compare the camel's hump?! Not so suited to today's off the

shelf society unfortunately (hardly hunter/gatherer!)

So the auto immune make up, is perhaps likely to have developed from drive to

survival in response to repeated external infections in pre antibiotic

eras.Producing these responses successfully aided survival.

Too long a post sorry,

Best wishes

Chris

retired doc UK,

friend with RA and no computer

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