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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.