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The BBC looked into
from two universities in the USA. They said blue has been a
since research began on colour in the 1800s. The researchers said most people's
of blue are positive. Many colours in nature that we love are blue,
a blue sky, the sea and many
. A blue sky is
to make many people very happy. The researchers say one of the only
associations with blue was in the English language. In English, people say they "have the blues" or are "feeling
," meaning they are sad. One factor in choosing a favourite colour was a
team. Many people like the colour the
they support plays in.
