The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
Did you know?
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
