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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.
Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
Asthma cases in Americans are about 75% higher today than they were in 1980.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.