Here is a list of elements commonly found in the human body.
1 Oxygen (65%)
2 Carbon (18%)
3 Hydrogen (10%)
4 Nitrogen (3%)
5 Calcium (1.5%)
6 Phosphorus (1.0%)
7 Potassium (0.35%)
8 Sulfur (0.25%)
9 Sodium (0.15%)
10 Magnesium (0.05%)
11Copper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70%)
12 Lithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts)
Notice that there are quite a few toxic chemicals. Elements like Selenium, while very toxic in large amounts, are required for a human to live. Others, while not necessary for live, are commonly found in trace ammounts with no ill effects. In fact it is perfectly normal to find trace amounts of Lead, Mercury, Thallium, Arsenic, and even Uranium in the human body. It is only when our body absorbs too much, Lead, Mercury, Arsenic, or in the wrong form, Chromium-6 (bad
) Chromium-3 (good
), that we become ill.
Uranium is not the killer of all living things. It is a natural element that has been here for billions of years. In terms of harming the body, DU is as dangerous as lead. As long as you don't eat it or inhale lots of it, you're fine. There is radioactive Americium in the smoke detector above my door and I don't seem be melting to the floor. There are no toxic substances, only toxic amounts