"The circadian clock -- also known as the internal body clock -- is largely driven by our exposure to light and the timing of when that happens. It impacts on sleep patterns, weight gain or loss, hormonal changes and our mood," said PhD student and study author Cassandra Pattinson said.READ: Excess light can seriously affect sleep quality in adults.
According to the Centers for Disease Control, these are the leading causes of death for infants and preschoolers. Awareness is key
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