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Did you know?
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Did you know?
Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.