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Did you know?
Your heart beats over 36 million times a year.
Did you know?
The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
Did you know?
The longest a person has survived after a heart transplant is 24 years.