A recent study on six participants revealed that the balance between light and darkness is crucial for maintaining ideal weight, overall health, and preventing chronic diseases such as cancer. Light is not just an external factor—it is a key trigger for your internal biological clock, regulating sleep, digestion, and tissue repair activities.
The Importance of the Biological Clock:
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The internal clock regulates sleep, wake cycles, food digestion, and repair processes.
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Imbalanced light exposure, especially in the evening, disrupts the clock, increasing risks of obesity, type 2 diabetes, and heart disease.
Short- and Long-Term Effects of Sleep Deprivation:
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Short-term: impaired decision-making, irritability, increased susceptibility to infections.
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Long-term: higher risk of obesity, diabetes, and cardiovascular diseases.
Blue Light Impact:
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Blue light from phones and screens affects light-sensitive cells in the eye, reducing melatonin production and delaying sleep.
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Exposure to strong light before bedtime acts like drinking coffee in the evening, postponing drowsiness and making waking more difficult.
Optimal Light Levels Before Sleep:
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Maximum light during the last three hours before sleep should be around 20 lux.
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Just five minutes of bright daylight exposure is enough to reset the biological clock, improving sleep and alertness.
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