The so called 'facts' that are actually 'fiction'
A new book has debunked some popular beliefs held by people, like ostriches bury their head in the sand when frightened, and that eating cheese before bedtime gives you nightmares - among many others.
People believe ostriches bury their head in the sand when frightened but the book says they bob their head from side to side to keep an eye on possible threats and run away if the threat is big enough, according to the Daily Express.
It is said that shaving makes hair grow back thicker. However, the book explained that hair is dead tissue so shaving can have no effect on the shape or size of the follicles from which the hair grows.
About the belief that reading by dim light will permanently damage your eyesight, the author writes reading in dim light might cause eye strain, make you feel tired or cause your eyes to feel dry because you will blink less, but it will not damage the focusing power of your eyes or the sensitivity of the retina.
It is often said that eating cheese before bedtime will lead to a fitful night's sleep full of bad dreams.
Refuting this belief, the book cited a 2005 study when the British Cheese Board attempted to overturn this by giving 200 willing volunteers different cheeses to eat and asking them to report on whether they then had nightmares. The volunteers reported weird and colourful dreams but no nightmares.
Another popular myth is that you can see the Great Wall of China from the Moon and astronauts have even taken photos to prove it.
The Moon is about 370,000 kilometres from the Earth. So, it does not matter how long the wall is, at that distance a structure as narrow as the Great Wall (a mere five metres at its widest) is well below the resolution of the human eye, the book said.