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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.
![(A) The levels of the spinal cord and spinal nerves. (B) Photograph of the spinal cord as it descend](https://biology-forums.com/gallery/47/medium_14755_27_08_12_4_56_12_82161984.jpeg)
![Tai chi walk along straight line. From tai chi stance, shift weight to the back leg and turn the ...](https://biology-forums.com/gallery/32/medium_380798_21_08_17_1_23_12_327291872.jpeg)