Posted on 02/26/2006 11:56:29 AM PST by wagglebee
Except that the theory is that global warming would create an ice age.
The meteorologist in me just can't wrap my brain around how global warming could result in an ice age. Something about temperatures going up and the melting point of water.
Northern Asians seem to have more oily skin, American Indians rubbed bear greese on their skin. These acts would enhance Vitamin D formation. Coastal Esquimos eat a lot of fish, including the liver which is very high in Vitamin D, as to Scandinavian people. Many primative peoples eat animal livers with great enthusiasm. Perhaps all liver is somewhat higher in Vitamin D, in addition to being highly nutritious.
Incidently, if you want to get more Vitamin D in the winter, bathe late in the evening so you have oil on your skin when you go out in the morning, and several hours to absorb the Vitamin D after you come in. There may be a correlation between Vitamin D levels and winter depression. More would be good.
Several addition thoughts on Vitamin D and mate selection.
Spain, Italy and Southern France are all very sunny places most of the year. Vitamin D and other oily vitamins like E and A are stored in the body for a time.
Dark skin containing more melanin is protective against excessive Vitamin D production in the tropics.
In most of Europe and North America food is supplemented with Vitamin D, so rickets is much less of problem than it used to be. This enables darker people to be healthy and bear live young. If we have a severe crisis when food is no longer supplemented, watch the blonds come back in droves.
"...few plants edible for humans. Women therefore took on jobs such as building shelters and making clothes while the men went on hunting trips...."
This must explain why I hate to cook, but love working on my house and knitting!!
I'm pretty certain that Marilyn Monroe was a real blond..
Sorry,not so. Looks best as a blonde though.
Hulkster
Women don't have to compete for men. Men are never "scarce."
On the contrary. Men compete for women. So it was women selecting the blond men that made blondness more common.
Sheesh.
Although I hate her politics, I will grudgingly concede that Jane Fonda was a hottie back in the day.
My husband has grey eyes, and my mother green eyes, so it's not surprising that, while I have brown eyes, my son has light eyes.
What is surprising is that they're blue. Nobody can remember a blue eyed child in the family -- obviously something to do with having a double recessive gene.
Blondness also runs in both families, but the type of blondness where the young children are tow-headed but darken as they get older.
Sometimes randomness is just randomness.
My oldest son looks like the milkman.
How's that for randomness.
Well, given that I, the mother, have dark eyes and my husband is the one with the light eyes, having a child with even lighter eyes doesn't suggest anything out of the ordinary.
If we both had light eyes and the child had dark eyes that would be a different matter.
I guess if my uncle didn't own a milk distributorship, and my oldest does look a lot like him, it would be a different matter for me too. :)
Then it's entirely possible to inherit a recessive for pigment in back of the iris (gray) and a recessive for pigment in front of the iris (green) and end up with a child with brown eyes.
Eye color questions.
My Scottish ancestry husband had clear bright blue eyes and red hair (according to a recent FR post that may mean he has some Neanderthal ancestry. I have hazel (northern European) eyes. When our two sons were born they had dark brown eyes. Since my husbands eyes were completely recessive, the brown had to come from me. Probably my Prussian German ancestors had some ancestry from the Mongolain Tartar invasion of Eastern Europe. Since oriental traits are often recessive to caucasian ones, I must have a dark brown semi-recessive eye color gene which overmastered my husbands true blue gene.
Simple ~ your kids inherited your recessive for pigmentation on the front of the iris, and your husband's recessive for pigmentation on the back of the iris. This yields brown eyes every single time.
It's noteworthy that in Finland they distinguish between two major populations on either side of a major river there by whether or not they have blue eyes (the fellows to the West of the river) or gray eyes (the fellows to the East of the river.)
Although outsiders might think they all have blue eyes, the Finns do notice the gray/blue difference.
This difference is also apparantly linked to some genes that control cholesterol production and levels, and by forcing change in the diets of the gray eyed people, the Finns have improved their heart health and lengthened their lives to measurable degrees.
Check those eyes again ~ bet they are "gray".
Your own "hazel" combed with a "gray" yields "brown". Remember, it's not a matter of having or not having pigmentation ~ it's where that pigment shows up on the iris ~ inside, outside, or both ~ that gives the different colors.
Check the eyes.
No, my husbands eyes were definitely a clear light blue. Two of our grandchildren have gray eyes, quite different.
Their mother is Celtic in background.
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