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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

The gender roles that we learn during childhood become part of our basic orientations to life. ... The gender roles that we learn during childhood become part of our basic orientations to life. ...
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