FUTURE Designs consultant Dr Neil Stanley reveals a number of commonly held sleep myths….
‘Blue’ light is bad for us.
We’re often told that ‘blue’ light is bad for us. This is due to the connotations with the light emitted from smartphones, tablet or computer screens. Light, particularly daylight, has a profound effect on sleep and alertness. When it is dark, the brain produces melatonin, which signals to the body that it’s time to sleep. Light, particularly in the blue part of the spectrum, signals to the brain that it is daytime. So it is true that high levels of cool, ‘blue’ light are bad for us when we are preparing to or trying to sleep. But during the working day, when it is necessary to be alert, blue light is our friend.
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