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Simplify the expression.
Insomnia
A sleep disorder characterized by difficulty falling asleep, staying asleep, or obtaining restorative sleep, leading to impairments in daytime functioning.
Dependent Variable
The variable in an experiment that is expected to change or respond as a result of manipulations of the independent variable.
Manipulates
To control or influence a person, situation, or system cleverly, unfairly, or unscrupulously, often to gain an advantage.
Independent Variable
In an experiment, the variable that is manipulated to observe its effect on a dependent variable.
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