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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?
The human body produces and destroys 15 million blood cells every second.
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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.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.