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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.
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
![Bow shock formed by the magnetosphere of LL Orionis (center) as it collides with the Orion Nebula fl](https://biology-forums.com/gallery/47/medium_12359_17_05_12_12_50_31.jpeg)
![Formed elements of blood: erythrocytes, leukocytes (neutrophils, eosinophils, basophils, lymphocytes](https://biology-forums.com/gallery/47/medium_14755_01_10_12_7_59_21_92261211.jpeg)
![A blood smear. The smear reveals representative cells from each formed element group: red blood cell](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_18_43_100341996.jpeg)
![Auguste Comte (1798–1857), who is credited as the founder of sociology, began to analyze the bases ...](https://biology-forums.com/gallery/47/medium_599494_07_11_16_11_58_21_24077416.png)