Have you ever slept out under the stars and woken up to the sunrise? This method of waking up is the most natural process possible. It?s no surprise that ?dawn simulating? alarm clocks have been developed. Waking up the way that our ancestors must have, with the rising of the sun, is biologically ingrained in our bodies ? according to many experts. The gradual increase of sunlight from night until dawn helps to draw us gently from sleep, starting our bodies out on a positive and healthy note for the day. You might balk at the thought of using light for your wake up call. Most of us need an alarm as loud as a marching band to get us up early in the morning. But a sunrise alarm clock works because the human eye is very sensitive to light, especially in the morning. Our eyes can perceive small amounts of light and recognize that it is morning. That light really sends a message to our brains saying ?wake up,?.

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