Brain scans, medical histories and simple logic show this is nonsense: our brains are complex and mysterious, but this doesn't mean they are largely unused.
Amazing but true!
There are about 600,000,000,000,000,000,000,000 molecules in one cubic inch of water: trillions of times more than the stars in our galaxy, which at most number around 400,000,000,000.
The seasons are caused by the fact that the Earth its tilted on its axis: when it's winter in one hemisphere, it's summer in the other, and vice versa.
Although the fruit in the garden of Eden is often depicted as an apple, the Bible itself only calls it a "fruit" without specifying which type.
Paracetamol is one of a number of common drugs whose mechanisms of action are not fully understood
No longer true!
We used to think this was true - but when the New Horizons mission flew close to Pluto in 2015, a more accurate measurement showed the planet was larger than previously thought, putting it ahead of Russia!
Although this claim is commonly made, there is no evidence to support it - although you should avoid alcohol before going for a swim.
Only too true!
In terms of sheer numbers, there are many more bacterial cells in your body than your own, human cells: ten times as many
Want to find out more? Check out my book Critical Thinking in all its glory!