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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
If you could remove all of your skin, it would weigh up to 5 pounds.
Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
The familiar sounds of your heart are made by the heart's valves as they open and close.
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.