|
|
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
Thyroid conditions may make getting pregnant impossible.
![The tundra at the base of the Torngat mountains in Labrador consists primarily of low-growing mosses](https://biology-forums.com/gallery/47/medium_33_27_08_11_11_56_24_15451996.jpeg)
![The ovaries. In addition to producing ova, the ovaries secrete the female sex hormones, estrogen and](https://biology-forums.com/gallery/47/medium_14755_28_08_12_1_42_24_8232364.jpeg)