In fact, the biopsy is fast losing position as the gold standard diagnosis because of extraintestinal manifestations of gluten immune response that don't cause observable changes to the small intestinal villi (joint pain, or rash, or gait - instability without obvious gut symptoms). (kellybroganmd.com)
Trump's stance on the environment contradicts thousands of scientists and decades of research, which has linked many observable changes in climate, including rising air and ocean temperatures, shrinking glaciers, and widespread melting of snow and ice, to an increase in greenhouse gas emissions from human activities. (businessinsider.com)
In mice, at least, BPA exposure at crucial stages of development induces observable changes (such as breast or prostate abnormalities) that last a lifetime. (discovermagazine.com)