While the human brain makes up only 2% of total body weight, it consumes 20% of the oxygen we breathe and 20% of the energy we use.

A study found that judges are more likely to make favorable rulings in criminal cases when the trial is early in the day or after breaks (like lunchtime). The likelihood of a favourable ruling drops from 65% to 0% as the day progresses.

High-heeled shoes were originally designed for and worn by rich men. The trend began in 10th-century Persia and was claimed by women in the 18th century.

The origins of artificial banana flavouring are disputed, but there is a rare type of banana that tastes very similar - the Gros Michel. It was popular in the 1950's, but nearly went extinct.

There's a jigsaw puzzle so difficult that it has remained unsolved for 17 years, with even AI struggling to solve it. It once offered a $2 million prize for completion, but that has since expired.

A recent study found that people who don’t get 7–9 hours of sleep per night have a 29% higher risk of dying early.

If a starfish is cut into pieces, each piece can survive and grow into a new starfish.