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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
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.
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.
![Apply forearm to the deep fascia of the back. Stand to one side of the face cradle; use the proximal ...](https://biology-forums.com/gallery/32/medium_380798_22_08_17_12_32_35_328442163.jpeg)
![Warming effleurage to thigh muscles. Use reinforced palm over palm method to apply deeper pressure ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_5_45_16_332401284.jpeg)