And you GOTTA' start takin' better care of your body, man! tisk! You're just lettin' yourself GO!
;-)
Posted on 06/10/2008 10:39:26 AM PDT by blam
Did hyperactivity evolve as a survival aid for nomads?
11:39 10 June 2008
NewScientist.com news service
Ewen Callaway
Impulsivity and a short attention span may be the bane of every parent with a hyperactive toddler, but those same traits seem to help Kenyan nomads keep weight on.
A gene mutation tied to attention deficit hyperactive disorder (ADHD) is also associated with increased weight among a chronically undernourished group of nomads called the Ariaal. Notably, the mutation offers no such benefit to a cousin population that gave up the nomadic lifestyle in the 1960s.
The nomads' active and unpredictable life centred on herding might benefit from spontaneity, says Ben Campbell, an evolutionary anthropologist at the University of Wisconsin at Milwaukee, US, who was involved in the new study.
"If you are a nomad then you ought to be little more impulsive than if you are settled," he says. "You should be a little quicker on the trigger."
Different lifestyles
The Ariaal are an isolated group of nomads who wander around northern Kenya, herding cows, camel, sheep and goats. Encouraged by Christian missionaries in the 1960s, some members settled in the same region and started relying on agriculture for some of their food.
The nomads and the settled groups still interact and intermarry, but they live drastically different lifestyles. "The nomads are always doing something. They are always walking to herd their animals," Campbell says, while settled Ariaal tend to be sedentary.
A previous study found that nomadic cultures around the world tend to have the same mutations, which determines the brain's response to a pleasure-delivering chemical called dopamine and is linked to impulsivity and ADHD.
Campbell and his colleague Daniel Eisenberg, of Northwestern University in Evanston, Illinois, US, looked for the mutation in 87 settled and 65 nomadic
(Excerpt) Read more at newscientist.com ...
YEC INTREP
Oh, I’m the type of guy that likes to roam around
I’m never in one place, I roam from town to town
You’ve got Rosie on your chest????
Oh well there’s Flo on my left arm and there’s Mary on my right
And Janie is the girl well that I’ll be with tonight
And when she asks me which one I love the best
I tear open my shirt and show her Rosie on my chest
‘Cause I’m a wanderer - yeah - a wanderer
I roam around around around around
And you GOTTA' start takin' better care of your body, man! tisk! You're just lettin' yourself GO!
;-)
Not that Rosie, ya mook—she’s a Nomad dyke.
We rumbled with the Nomads, they were fags!
Hey, A Rosie is a Rosie is a Rosie....
Or “Rosie by any other name would still stink.”
She looks like she smelled something really bad.
Like the Irishman dancing with the dancehall girl.
He says to her, “Lass, can I smell your p****?”
And she pretends to be all upset and hot, and slaps him and says, “No!”
And he replies, “Well, it must be your feet then.”
I think that hyperactivity (ADHD) evolved as an excuse to sell drugs to kids...
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