Almost 1 in 10 men and 1 in 200 women suffers from a variety of colour blindness, most common being red/green colour blindness.
Have you ever wondered how it is like to see the world thru the eyes of a colour-blind person? Well, here it is...
The colour chart on the left is how most of us sees colours, where you will see the whole spectrum of colours. On the right is how colours are perceived by someone with colour blindness, basically both colour charts will look the same to them.
If this is the case, then people with colour blindness must really suffer during Christmas cos everything looks brown and yellow to them, right? :(