Valkee 2 Informations techniques télécharger pdf (Page 7)

1.4. LIGHT AND HEALTH

Our daily functioning varies in line with the 24

hours of the day. This circadian (from circa =

about, dies = day) variation is caused by our

internal biological clock, which gets its timing

cues from the external light-dark cycle. A well-

synchronized biological clock helps regulate

our mood, sleep, energy, appetite and diges-

tion and helps ensure our well-being. Some-

times our internal clock gets out of sync with

the external world, – for example, because of

long-distance travel or working night shifts. This

can cause various health-related problems.

Many factors in day-to-day life diminish the

ability of our internal biological clock to syn-

chronise us properly with our external environ-

ment. We no longer work regularly from dawn

to dusk: many people work irregular hours or

must follow shift-work schedules, or travel ex-

tensively across several time zones. Also, mod-

ern electric lighting allows activities to extend

well into the night.

These factors can be balanced through ex-

posure to bright light that is timed with the in-

dividual’s needs in mind. For more information

about how to use the device to improve your

well-being, visit www.valkee.com/support.

Keep dry

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Valkee 2 Informations techniques Page 7