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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
By definition, when a medication is administered intravenously, its bioavailability is 100%.
Did you know?
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.