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Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Did you know?
As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.