When pollution is caused by nutrients and fertilizers, this is called nutrient pollution, and it leads to an overproduction of algae and other aquatic plants. This overabundance of plants and algae causes problems, because they cover the water surface and prevent sunlight from reaching the plants underwater.
Reverse T3 is actually an antithyroid -- T3 is the active thyroid that goes to the cells and stimulates energy and metabolism. Reverse T3 is a mirror image -- it actually goes to the receptors, sticks there, and nothing happens. So it blocks the thyroid effect. Reverse T3 is kind of a hibernation hormone, in times of stress and chronic illness, it lowers your metabolism.
My PCP swears up and down that with a thyroid cascade test that everything (all T4 and T3) was tested and since everything was normal only the TSH was reported... This makes NO sense to me. WHY would you do a test and not report the findings regardless if it's normal or not. I even got so ticked this afternoon, I called the lab and the person at the help desk said what I was thinking, that if the TSH was in the normal range the testing stopped.