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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
Blood is approximately twice as thick as water because of the cells and other components found in it.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
![Peripheral veins used in intravenous therapy; A, forearm; B, dorsum of the hand; C, dorsal plexus of](https://biology-forums.com/gallery/47/medium_18099_26_09_12_4_30_04.jpeg)
![Draping for massage of leg in supine position. A. Lift the leg with one hand, and with the other ...](https://biology-forums.com/gallery/32/medium_380798_22_08_17_9_43_29_329702412.jpeg)