|
|
As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
Asthma cases in Americans are about 75% higher today than they were in 1980.
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.
The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.
![U.S. suburbs were once unplanned, rambling affairs that took irregular shapes as people moved away ...](https://biology-forums.com/gallery/28/medium_482573_20_04_17_1_40_00_28021450.png)
![Ads from the public service campaign in the late 1960s and early 1970s that encouraged people to get ...](https://biology-forums.com/gallery/31/medium_398119_14_07_17_5_07_30_3175054.jpeg)