|
|
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
![Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation.](https://biology-forums.com/gallery/47/medium_12359_26_01_13_4_03_53.png)
![(a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko](https://biology-forums.com/gallery/47/medium_275510_22_02_15_6_06_47_20781142.jpeg)
![Frederic Edwin Church conveyed the romantic sensibility in Twilight in the Wilderness (1860). The cl](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_29_223011616.jpeg)