epiphiny43
Posts: 688
Joined: 10/20/2006 Status: offline
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quote:
Sunburns don't cause skin cancer? What?? Don't bother telling any of my dermatologists this. They do case histories, take the malignancy test samples, read the lab reports, make the oncology referrals, visit at hospice care and get the funeral notices and autopsy files. The Solar Radiation and skin cancer links are multiple and complicated. Peeling burns before puberty are one of the strongest links to Melanoma after age 45. Half the field doesn't see a strong connection between sun blocks and preventing cancer, skin UV block has a stronger effect in preventing skin aging. Genetic components of each individual's cells can create large risks from Sun exposure or vary all the way to make individuals remarkably resistant to skin cell DNA disturbances. Real life is complicated, simple answers are usually misleading at best. How food manufacturers, who add fat liberally to create consumer preferred tastes, benefit from the campaign to limit fat in diets escapes me completely. Fat is now understood to be an essential of a good diet. Too little is bad, too much is usually worse. Different balances including saturated, mono-saturated and several varieties of polyunsaturated seem least problematic among various studies. Artificially hardened (saturated) fats have the environmentally and evolutionarily novel and toxic addition of Trans Fatty Acids, (Traditional margarine is loaded) which has been found to be the large risk in modern high fat diets. Pre-margarine diets with large saturated fat components were Not known for high heart disease rates or the many internal cancers we now see. Complicating the picture, people didn't live long enough to die from these as infections and communicable diseases held life expectancy to under 45 till the start of the 20th Century. The average person's daily calorie burn from simply working, farming or household tasks was also well above most current work or life styles.
< Message edited by epiphiny43 -- 5/23/2015 4:04:42 PM >
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