Observations
Antioxidants may not be worth their salt in preventing cancer
April 20th, 2010 |
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WASHINGTON—To decrease your risk of cancer, don’t count on antioxidant supplements, a panel of researchers said here at the annual meeting of the American Association for Cancer Research. But assessing antioxidants’ role (and that of many other dietary supplements) in preventing disease has been notoriously difficult. Antioxidants, such as vitamin C, vitamin E, beta carotene, [...]
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![Figure 1. Plot of the locations of the languages in the sample. Dark circles represent languages with ejectives, clear circles represent those without ejectives. Clusters of languages with ejectives are highlighted with white rectangles. For illustrative purposes only. Inset: Lat-long plot of polygons exceeding 1500 m in elevation. Adapted from Figure 4 in [8]. The six major inhabitable areas of high elevation are highlighted via ellipses: (1) North American cordillera (2) Andes (3) Southern African plateau (4) East African rift (5) Caucasus and Javakheti plateau (6) Tibetan plateau and adjacent regions. doi:10.1371/journal.pone.0065275.g001](http://blogs.scientificamerican.com/anthropology-in-practice/wp-content/blogs.dir/8/files/2013/06/journal.pone_.0065275.g0011.png "journal.pone.0065275.g001")
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