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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.
Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
The average office desk has 400 times more bacteria on it than a toilet.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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