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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
The average office desk has 400 times more bacteria on it than a toilet.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
![Lungs: RUL = Right Upper Lobe, RML = Right Middle Lobe, RLL = Right Lower Lobe, LUL = Left Upper Lob](https://biology-forums.com/gallery/47/medium_2137_21_07_12_5_27_30.jpeg)
![Body cavities. (A) Lateral view of a sagittal section through the body. (B) Anterior view of a front](https://biology-forums.com/gallery/47/medium_14755_20_09_12_5_58_20_885570.jpeg)