Mercury.....

Is mercury Toxic?....high levels of mercury can cause health problems.....
A highly toxic form (methylmercury) builds up in fish, shellfish and animals that eat fish. Fish and shellfish are the main sources of methylmercury exposure to humans. Mercury exposure at high levels can harm the brain, heart, kidneys, lungs, and immune system... .. ...How is mercury dangerous?
Health effects of mercury exposure. Elemental and methylmercury are toxic to the central and peripheral nervous systems. The inhalation of mercury vapour can produce harmful effects on the nervous, digestive and immune systems, lungs and kidneys, and may be fatal. ... ............What does mercury do to your body?
Mercury has no value to the human body and is best thought of as poison. The effects of mercury exposure vary depending on the form and level of exposure. Acute exposure to mercury vapor can produce serious effects on the nervous system including psychotic reactions, hallucinations, suicidal tendencies and delirium. .. ...............Which organ does mercury poisoning affect?
Mercury salts affect primarily the gastrointestinal tract and the kidneys, and can cause severe kidney damage; however, as they cannot cross the blood–brain barrier easily, mercury salts inflict little neurological damage without continuous or heavy exposure. .. ...