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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.