Due to sugar shortages to make candy during World War II, movie theatre owners turned to popcorn, which is now the best selling snack at movie theatres today.

Murphy beds have been attributed as the cause of people's deaths before. Most recently in 2005 when two women were trapped and suffocated to the death by their Murphy bed.

The human brain takes up 2% of human body weight but uses 20% of its energy.

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