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Scientists at the University of Ulster are investigating a link between some man-made nanoparticles, such as those found in sunscreens and Alzheimer's disease.
“It has recently been discovered that nanoparticles can have highly significant impacts on the rate of misfolding of key proteins associated with neurodegenerative diseases like Alzheimer's and Parkinson's disease.
Since it's summer time, I figured I would add this cause it's important as well. Products like Sun Screen may actually not be all that the doctor ordered either.
Most sunscreens only block UVB rays, leaving UVA rays to do damage. Because people believe they are protected, it causes people to stay in the sun too long. And interestingly enough, it's UVB rays that make us burn. So our natural warning signal is slowed, and instead of us beginning to burn and realizing it's time to go inside, we stay in the sun far too long.
Furthermore, UVB is how we get Vitamin D naturally. Vitamin D, interestingly enough, is known to help prevent some cancers, most notably, breast and colon. If all this weren't bad enough, keep in mind that when you are lathering yourself up with lotion, you're smearing chemicals all over your skin. Some of those chemicals are toxic, and your pours drink them up and shuttle them all over your body.
Source: Cedric F. Garland. “More on Preventing Skin Cancer”. British Medical Journal, 2003:327:128 (22, November). Thompson, Larry. “Sunscreen, Skin Cancer and UVA”. Healthlink (Medical College of Wisconson), 26 July, 2000. Mercola.com website of Dr. Joseph Mercola