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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.
There are more nerve cells in one human brain than there are stars in the Milky Way.
In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.