LIGHT AND THE BIOLOGICAL CLOCK

How light gives our life rhythm

Light affects the body on so many different levels, regulating our hormonal and metabolic processes and continually synchronises our biological clock.

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Circadian rhythms

Our biological clock drives our circadian rhythms – our physical, mental and behavioural changes throughout a 24-hour day/night cycle.

A ‘master clock’ in the brain controls circadian rhythms, which are a group of nerve cells called the suprachiasmatic nucleus (SCN), located in the hypothalamus within the brain. These circadian rhythms influence sleep-wake cycle, hormone release, body temperature and other important bodily functions.

The biological effects of light

Research has shown that light entering the human eyes has, apart from a visual effect, got an important non-visual or a biological effect on the human body. The quantity and quality of light regulates certain hormones in our body, particularly melatonin, known as the sleep hormone.

Sufficient light suppresses melatonin

With exposure to sufficient quality light, our hormone, melatonin, is suppressed during day, enabling us to become more active and alert. Likewise, in the dark hours, melatonin production increases helping to promote a good night’s sleep.

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Biodynamic lighting ensures optimum health and wellbeing
Biodynamic lighting replicates the benefits of natural light. By ‘bringing the natural daylight indoors’ our biological clocks can be regulated, ensuring optimum health and wellbeing is achieved.

Find out more about the brilliance of biodynamic lighting >>