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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
Did you know?
Thyroid conditions may make getting pregnant impossible.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.