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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The familiar sounds of your heart are made by the heart's valves as they open and close.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.