Karen constantly feels drowsy. she tends to suddenly fall asleep when she is excited and finds it difficult to stay awake for long periods of time. Karen most likely has b. narcolepsy.
Many instances of narcolepsy are concept to be caused by a loss of a brain chemical called hypocretin (also known as orexin), which regulates sleep. The deficiency is thought to be the end result of the immune gadget mistakenly attacking elements of the mind that produce hypocretin.
Immoderate daytime sleepiness is usually the first signal of narcolepsy. It could have a widespread impact on everyday life. Feeling drowsy all through the day and struggling to live wide awake makes it hard to concentrate at work or the faculty. People with narcolepsy can be misjudged as being lazy or impolite.
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Answer:
the study of how society chooses to use scarce resources to satisfy its unlimited wants and needs. ... in economics, any material provided by nature that can be used to produce goods or provide services.
Explanation:
The correct answer is token.
Tokens are used in the so called "Token Economy", wherein tokens are earned through specific tasks. While the holder of the tokens may use these tokens in exchange for rewards, just like in the given situation wherein the children who performs well in class receives stickers, which are considered to be tokens and if they received 5 of them, they will be exempted from homework.