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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.
![Species currently endangered in Canada include (a) the Burrowing Owl, Athene cunicularia; (b) Taylor](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_40_13_18261512.jpeg)
![Map of the Moon by Johannes Hevelius from his Selenographia (1647), the first map to include the lib](https://biology-forums.com/gallery/47/medium_12359_23_01_13_7_12_57.png)