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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.
Medication errors are three times higher among children and infants than with adults.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
![Note the discovery as the air filter housing was opened during service on a Pontiac Bonneville. The ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_2_42_23_29619489.png)
![Not only was the housing filled with nuts, but also this air filter was extremely dirty, indicating ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_2_42_23_29620423.png)
![Some IAC units are purchased with the housing as shown. Carbon buildup in these passages can cause ...](https://biology-forums.com/gallery/30/medium_548020_31_05_17_3_07_00_300652112.png)