I was reading an article in the Salt Lake Tribune on air pollution, and it reminded me of a groundbreaking article from Germany in the Journal of Investigative Dermatology from few months ago. Researchers found that there was an association of air pollution with signs of aging like brown spots and wrinkles. When researchers controlled for other things like smoking, sun exposure, weight, and hormone replacement, the association of pollution levels was particularly strong with development of brown lesions called lentigos. So maybe we should be avoiding pollution for our skin as well as our lungs. Here is a link to a nice summary of the pollution and aging article if you are interested.
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