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Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.
Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
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.
It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.
![Examples of USP labels Source: Courtesy of Novartis Pharmaceuticals Corporation and Mallinckrodt Pha](https://biology-forums.com/gallery/47/medium_46687_08_12_14_4_52_48_19155192.jpeg)
![Field research on free-living primates allows primatologists to study patterns of behavior in the se](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_23_204322151.jpeg)