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Author Question: If v = -i + 7j and w = 4i - 4j, then find v + w. (Read 23 times) |
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
In 1864, the first barbiturate (barbituric acid) was synthesized.
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.
Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.